Polyethylene Foam have suitable mechanical characteristic, insulating and damping properties. It also have a low permeability to water vapour and limited water absorption. It is often used as roofing insulation.

PILUM ALUMINUM FOIL DUCT TAPE
Pilum Aluminum Foil Duct Tape can be used for shielding, patching, seaming, and sealing to protect the materials from moisture, heat, odor, and chemical transmission.