Roof assembly designer (Table 8 logic)

Product (generic) λ (W/m·K) Recommended thickness (mm)
# Material λ Thickness (mm) R (m²·K/W)

Designed added insulation R: 0.00 m²·K/W

Add Reflective Foil (Table 9)

Note: Uses standard emittance (0.2 outer / 0.05 inner). Heat flow direction is derived from your Project Zone.