Soffit Insulation - Spray Foam,Transient
Closed
Cell
(50mm)
data using WUFI Software
• Exterior (Below Floor Slab)
- 27°C and RH 70% ±10
• Interior (Above Floor Slab)
- 16°C and RH 35% ±10
5 years data from (Oct 2025 – Oct 2030)
Evaluation based on WUFI® VTT post
processor.
• Helps predict mold growth and assess
moisture risks in building materials by
considering factors such as temperature,
relative humidity, and the specific
properties of the materials
Soffit Insulation - Spray Foam, Closed Cell (50mm)
•
•
•
(Mould Index: MI > 3) : an unacceptable level of
mould risk anywhere in structure; should not be built
(Mould Index: 1 < MI ≤ 3) : further moisture
management strategies are needed
(Mould Index: MI < 1) : the risk is acceptable
Evaluation using WUFI VTT
-
Mold growth index (MGI) over time
-
Trend over time:
-
Gray line (between concrete and foam): MI > 1 (medium
risk) and may require further moisture management
strategies.
-
Red line (location after spray foam): MI <1 (risk is
acceptable) but increasing over time.
Soffit Insulation - Spray Foam,Transient
Closed
Cell
(20mm)
data using WUFI Software
• Exterior (Below Floor Slab)
- 27°C and RH 70% ±10
• Interior (Above Floor Slab)
- 16°C and RH 35% ±10
• 5 years data from (Oct 2025 – Oct 2030)
Evaluation based on WUFI® VTT post
processor.
• Helps predict mold growth and assess
moisture risks in building materials by
considering factors such as temperature,
relative humidity, and the specific
properties of the materials
3
Soffit Insulation - Spray Foam, Closed Cell (20mm)
•
•
•
(Mould Index: MI > 3) : an unacceptable level of
mould risk anywhere in structure; should not be built
(Mould Index: 1 < MI ≤ 3) : further moisture
management strategies are needed
(Mould Index: MI < 1) : the risk is acceptable
Evaluation using WUFI VTT
-
Mold growth index (MGI) over time
-
Trend over time:
-
Red line (between concrete and foam): MI > 3 (high risk). An
unacceptable level of mould risk anywhere in structure;
should not be built.
-
Blue line (location after spray foam): MI > 3 (high risk). An
unacceptable level of mould risk anywhere in structure;
should not be built.
Soffit Insulation – ROCKWOOL Stone Wool 80kg/m3
Transient data using WUFI Software
(50mm)
- Exterior (Below Floor Slab)
- 27°C and RH 70% ±10
- Interior (Above Floor Slab)
- 16°C and RH 35% ±10
5 years data from (Oct 2025 – Oct 2030)
Evaluation based on WUFI® VTT post
processor.
• Helps predict mold growth and assess
moisture risks in building materials by
considering factors such as temperature,
relative humidity, and the specific
properties of the materials
Soffit Insulation – ROCKWOOL Stone Wool 80kg/m3
(50mm)
•
•
•
(Mould Index: MI > 3) : an unacceptable level of
mould risk anywhere in structure; should not be built
(Mould Index: 1 < MI ≤ 3) : further moisture
management strategies are needed
(Mould Index: MI < 1) : the risk is acceptable
Evaluation using WUFI VTT
-
Mold growth index (MGI) over time
-
Trend over time:
-
Blue line (between stone wool and concrete): MI = 0 (risk is
acceptable).
-
Red line (location after stone wool): MI = 0 (risk is
acceptable).