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LOFT INSULATION ONLINE U-VALUE CALCULATORS
Here are some useful free online calculators
Kingspan Insulation: u-valuecalculator.com/gb
Recticel: recticelinsulation.com/en-gb/u-value-calculator
Knauf Insulation: uvalueknaufinsulation.co.uk/uvaluecalculator
Rockwool: bim.rockwool.co.uk/u_value/
Multifoil: https://www.superfoil.co.uk/u-value-calculator/
Free Downloads
Insulating between & over rafters
