System Description: Suspended timber floor, sealed airspace above Foilboard, Foilboard installed to bottom of joist, enclosed subfloor, 19mm tongue and groove flooring. 140mm x 45mm timber joist at 450mm c/c, 300mm x 50mm pine bearer at 3600mm c/c. Ground thermal resistance based on sub floor ventilation area per perimeter length 6000mm2/m = R0.58 heat flow out and R0.56 heat flow in. Foilboard installed anti-glare side up. Fully sealed airspace assumes no dust cover on upward facing surfaces. Enclosed cavity to prevent air ingress. Calculated per AS/NZS 4859, Part 1&2 2:2018. Added Insulation R Value includes the material insulation R Value and the R Values of the associated reflective airspaces within the insulation system pathway less non-reflective enclosed subfloor air film.
If elements of construction vary from that described, this may produce a different thermal resistance result.
System Description: Suspended timber floor, sealed airspace above Foilboard, Foilboard installed to bottom of joist, enclosed subfloor, 19mm tongue and groove flooring. 150mm x 50mm x 1.9mm steel joist at 450mm c/c, 250mm x 50mm steel bearer at 5600mm c/c. Ground thermal resistance based on sub floor ventilation area per perimeter length 6000mm2/m = R0.58 heat flow out and R0.56 heat flow in. Foilboard installed anti-glare side up. Fully sealed airspace assumes no dust cover on upward facing surfaces. Enclosed cavity to prevent air ingress. Calculated per AS/NZS 4859, Part 1&2 2:2018. Added Insulation R Value includes the material insulation R Value and the R Values of the associated reflective airspaces within the insulation system pathway less non-reflective enclosed subfloor air film.
If elements of construction vary from that described, this may produce a different thermal resistance result.
DISCLAIMER All statements and technical information contained herein are based on tests we believe to be reliable, but the accuracy thereof is not guaranteed. Users assume all risk and liability resulting from the use of the product and must confirm the suitability thereof by their own calculations. Conditions of Sale contain a limited warranty against manufacturing defects. Where applicable, Foilboard GREEN should be installed per the National Construction Code (NCC), state building legislation and/or a performance solution.
