reflective insulation

Reflective insulation rolls are typically made from double-sided aluminum foil bonded to a foam core (commonly EPE foam). Some products add a PE woven fabric layer for extra wear resistance. Product listings may also generically list polyethylene or plastic as constituent materials.

Manufacturers commonly recommend these rolls for windows, garage doors, RVs, residential walls and roofs.

Listings describe them as lightweight and easy to cut, fold and install, making them suitable for DIY sizing, handling and storage.

Many listings describe a multi-function role: acting as a radiant barrier, providing insulation, and offering vapor/vapour control. RV vent-style insulators are also described as reducing heat transfer to help maintain cooler, more consistent interior temperatures and improve A/C performance.

Some products use a double-layer aluminum foil bonded to an EPE foam core (a two-layer construction), while others use a triple-layer structure that adds a central PE woven fabric layer between foil and foam for added durability.