Flameproof underlay is used for metal or insulated single ply roofing and virtually any type of tiled roof.á
It is also a vapor retarder for above grade work, such as wall and roof assemblies. This membrane is intended to resist moisture intrusion. Flameproof roofing underlayment is a three-layered, virgin low-density polyethylene, incorporating a high-density polyethylene reinforced grid for superior resistance to water vapor transmission and high tensile strength.á
Lightweight and therefore very
easy to handle, when installing.