Material Composition: Features a polyethylene foam core wrapped or laminated on both sides with reflective aluminium foil to block radiant heat. [1, 2, 3]
Common Dimensions: Typically sold in rolls measuring around 40meters in length and 1.5 meters in width, with varying thicknesses from 2mm to 10mm.
Key Uses: Installed directly beneath roof sheets to keep buildings cooler during hot weather, retain warmth in colder conditions, and provide waterproofing or sound dampening