BS EN ISO 6946 (U-values)
What it covers
What it means for our calculators
Where to read it
Calculators that use it
Insulation thickness calculator
Example: Insulation: at least 100.4 mm
U-value calculator
Example: U-value: 0.181 W/m²K
Example: Insulation: at least 100.4 mm
Example: U-value: 0.181 W/m²K