Insulation Calculation Tool beta

The RIBuild Insulation Calculation Tool is not optimized for small screen devices, we hope you’ll open the tool on a device with a larger screen. We apologize for the inconvenience.

Insulation Calculation Tool beta

The table presents different output options and mean values (in bold) for various parameters. Further it gives minimum and maximum values (small font size). Average values, minimum and maximum are based on a number of simulations (indicated at right) made to handle the variation in material properties and climate.

If no results are shown, based on your input (location, wall type etc.), the web tool at present does not contain any simulations with the chosen combination. To get results you can broaden your search, e.g. by selecting a town instead of a specific address, by choosing a wider interval of orientation or wall thickness or by choosing another combination of internal and external plaster

(29 aggregations out of 1015) show introduction

Reference - no insulation

This is an average of 298 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
2.74 0.44 – 15.09
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
78200 408 – 304220
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
14.2 1.1 – 19.8
Loading

120 mm Polyurethane Foam λ=0.03 W/(mK)

This is an average of 1477 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.43 ref. 2.74 0.16 – 1.44
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.6 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
15884 ref. 78200 2278 – 39201
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
19.4 ref. 14.22 18.2 – 19.9
Loading

100 mm Polyurethane Foam λ=0.03 W/(mK)

This is an average of 1476 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.5 ref. 2.74 0.17 – 1.68
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
18161 ref. 78200 1307 – 42533
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
19.3 ref. 14.22 17.9 – 19.9
Loading

80 mm Polyurethane Foam λ=0.03 W/(mK)

This is an average of 1485 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.58 ref. 2.74 0.2 – 2.01
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.9 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
21222 ref. 78200 1721 – 55245
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
19.1 ref. 14.22 17.6 – 19.9
Loading

80 mm Calcium Silicate λ=0.04 W/(mK)

This is an average of 593 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.89 ref. 2.74 0.18 – 3.44
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
25531 ref. 78200 1752 – 82832
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
17.9 ref. 14.22 14.7 – 19.8
Loading

90 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1482 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.66 ref. 2.74 0.06 – 3.58
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
24400 ref. 78200 2234 – 181129
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.7 ref. 14.22 12.7 – 19.9
Loading

110 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1480 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.56 ref. 2.74 0.03 – 2.93
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
20414 ref. 78200 0 – 109524
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.9 ref. 14.22 13.8 – 19.9
Loading

100 mm Calcium Silicate λ=0.04 W/(mK)

This is an average of 593 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.81 ref. 2.74 0.16 – 9.45
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
22515 ref. 78200 2275 – 289802
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18 ref. 14.22 6.9 – 19.8
Loading

80 mm Calcium Silicate λ=0.07 W/(mK)

This is an average of 296 simulations across 134 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.25 ref. 2.74 0.22 – 7.22
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
31488 ref. 78200 15 – 106605
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.3 ref. 14.22 8.1 – 19.8
Loading

100 mm Calcium Silicate λ=0.07 W/(mK)

This is an average of 1188 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.16 ref. 2.74 0.26 – 6.76
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
28620 ref. 78200 0 – 135406
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.9 ref. 14.22 8.2 – 19.8
Loading

80 mm PUR foam with CaSi channels λ=0.04 W/(mK)

This is an average of 593 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.73 ref. 2.74 0.22 – 2.69
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.6 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
25236 ref. 78200 4102 – 63823
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.6 ref. 14.22 16.7 – 19.9
Loading

60 mm Polyurethane Foam λ=0.03 W/(mK)

This is an average of 1481 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.7 ref. 2.74 0.16 – 2.5
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.9 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
25566 ref. 78200 4073 – 66063
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.9 ref. 14.22 17 – 19.9
Loading

120 mm Mineral Wool λ=0.03 W/(mK)

This is an average of 1481 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.66 ref. 2.74 0.06 – 2.86
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.6 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
17437 ref. 78200 0 – 51692
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
19.3 ref. 14.22 17.9 – 19.9
Loading

95 mm Mineral Wool λ=0.03 W/(mK)

This is an average of 1484 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.74 ref. 2.74 0.18 – 3.25
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
20441 ref. 78200 0 – 65928
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
19.1 ref. 14.22 17.5 – 19.9
Loading

70 mm Mineral Wool λ=0.03 W/(mK)

This is an average of 1484 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.86 ref. 2.74 0.21 – 3.58
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
24841 ref. 78200 719 – 80937
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.9 ref. 14.22 17 – 19.9
Loading

80 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1484 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.72 ref. 2.74 0.17 – 3.86
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.7 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
26715 ref. 78200 3090 – 140595
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.6 ref. 14.22 12.1 – 19.9
Loading

65 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1483 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.84 ref. 2.74 0.19 – 4.2
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
31473 ref. 78200 1511 – 218597
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.4 ref. 14.22 11.2 – 19.9
Loading

80 mm Calcium Silicate λ=0.06 W/(mK)

This is an average of 298 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.2 ref. 2.74 0.28 – 7.33
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
27693 ref. 78200 26 – 95255
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.6 ref. 14.22 8.1 – 19.8
Loading

60 mm Calcium Silicate λ=0.04 W/(mK)

This is an average of 594 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.04 ref. 2.74 0.2 – 3.89
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
29900 ref. 78200 1379 – 99180
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
17.7 ref. 14.22 13.6 – 19.8
Loading

50 mm PUR foam with CaSi channels λ=0.04 W/(mK)

This is an average of 592 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
0.97 ref. 2.74 0.27 – 3.73
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
34374 ref. 78200 5083 – 90367
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18.3 ref. 14.22 15.4 – 19.8
Loading

50 mm Calcium Silicate λ=0.07 W/(mK)

This is an average of 1481 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.48 ref. 2.74 0.16 – 6.61
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
40390 ref. 78200 0 – 182209
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.3 ref. 14.22 7.2 – 19.8
Loading

45 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1484 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.05 ref. 2.74 0.22 – 4.66
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
39458 ref. 78200 2691 – 174849
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
18 ref. 14.22 10 – 19.9
Loading

30 mm Calcium Silicate λ=0.07 W/(mK)

This is an average of 296 simulations across 134 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.76 ref. 2.74 0.37 – 7.32
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
49289 ref. 78200 50 – 177157
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
15.6 ref. 14.22 6.4 – 19.8
Loading

30 mm PUR foam with CaSi channels λ=0.04 W/(mK)

This is an average of 595 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.27 ref. 2.74 0.32 – 5.1
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
45223 ref. 78200 6054 – 130091
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
17.9 ref. 14.22 13.7 – 19.8
Loading

50 mm Calcium Silicate λ=0.06 W/(mK)

This is an average of 1781 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.53 ref. 2.74 0.31 – 7.85
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.3 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
51052 ref. 78200 25 – 387782
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.9 ref. 14.22 7.1 – 19.8
Loading

25 mm Calcium Silicate λ=0.07 W/(mK)

This is an average of 1481 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.81 ref. 2.74 0.37 – 7.87
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
51825 ref. 78200 0 – 211738
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
15.8 ref. 14.22 6.1 – 19.8
Loading

20 mm Phenolic Foam λ=0.02 W/(mK)

This is an average of 1482 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.5 ref. 2.74 0.3 – 6.81
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 1 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
56002 ref. 78200 0 – 237879
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
17.1 ref. 14.22 7.5 – 19.8
Loading

30 mm Calcium Silicate λ=0.06 W/(mK)

This is an average of 1776 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.77 ref. 2.74 0.35 – 9.32
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.4 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
59408 ref. 78200 50 – 395288
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.5 ref. 14.22 6.3 – 19.8
Loading

25 mm Calcium Silicate λ=0.06 W/(mK)

This is an average of 1776 simulations across 135 weather stations.

Sim. U-Value (W/m2K)
?
U-value (W/(m2K))
Requirement for the simulated thermal resistance (W/(m2K)) or simulated U-value of the wall is usually specified in building regulations and based on climatic zones. A low U-value corresponds to a low heat loss. Note, the U-values is simulated parallel with the hygrothermal simulations.
1.85 ref. 2.74 0.24 – 9.62
Mould (Index)
?
Mould (index)
A number on a scale from 0 (no mould) to 6 (extensive mould growth) indicating the risk for mould growth between the existing wall and the internal insulation. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, material properties and the characteristics of mould fungi present, using the VTT model Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
0.1 ref. 0.07 0 – 3.5
Algae (Index)
?
Algae (index)
A number on a scale from 0 (no algae) to 1 (full coverage) indicating the share of the exterior surface covered by algae. This is based on a complex interaction between environmental factors (relative humidity and temperature) and duration, and surface properties (porosity, roughness), based on Avrami’s law improved into a modified model. Colour coding using green (low index), yellow (medium) and red (high) classifies the different solutions presented. The number given is the maximum value within a five-year simulation period.
1 ref. 0.99 0.6 – 1
Heat loss (W/m2/year)
?
Heat loss (W/m2/year)
Heat loss through the external wall per m2 per year after being insulated. The lower the number, the higher the reduction compared to the situation before applying internal insulation. Heat loss is expressed for a homogenous part of the wall with no thermal bridges etc. Heat loss depends on the outdoor climate, i.e. a location in a cold climate corresponds to a high heat loss compared to a location in a warmer climate.
62018 ref. 78200 0 – 281647
Min. surface temperature (°C)
?
Min. surface temperature (°C)
Minimum temperature (°C) of the interior surface of the walls achieved within a five-year simulation period. The lower the temperature, the higher the risk of mould growth or condensation. The critical surface temperature depends on the location of the building and the indoor climate. The simulations are based on indoor climate EN 15026 class A and B. In both cases indoor temperature goes from 20 C at 10 C outdoor to 25 C at 20 C outdoor. No change below 10 C outdoor or above 20 C outdoor. Class A: Relative humidity goes from 35 % at -10 C outdoor to 65 % at 20 C outdoor. Class B: From 40 % to 70 %. No change below -10 C and above 20 C.
16.4 ref. 14.22 6 – 19.8
Loading

This project has received funding from the European Union’s
Horizon 2020 research and innovation programme under
grant agreement No 637268