The polyethylene foam membrane with double aluminum foil insulates by the reflection of the aluminum foil and the low conductivity of the polyethylene foam.
The main characteristic of the foam is its closed cell structure, which provides sealed air cells. This cell structure creates a thermal insulation material with low conductivity. It’s also easy to handle, with elastic memory (allowing a proper seal where the membrane is perforated by screws).
This membrane is thermal welded, it doesn´t spread dust particles and is classified by Argentine INTI as RE3: Low flame spread.