Grp Roofing Membrane

On a timber roof dryseal grp is in excess of 20 times more puncture and load resistant than pvc membrane.

Grp roofing membrane. Grp is composed of a resin with glass or fibrous strands that reinforce the roofing material. Glass reinforced plastic grp is comprised of polyester resin and chopped strand mat glass fibres which are mixed together to form a laminate. Although the resin is a liquid a catalyst is applied which starts a curing process to turn the liquid into a solid over a short period of time. Polyroof 185 was the first ever fibreglass system to receive bba certification and has been installed on roofs and balconies since 1984.

This allows the grp membrane to be secured to the roof construction but still be allowed to move independently of the layers below. Our grp flat roofing systems combine a number of materials including osb3 board decking topseal resin fibreglass matting topseal durable topcoat and topseal fibreglass preformed trims to create a roof that s not only tough and impact resistant but also attractive and pleasing to the eye. Grp stands for glass reinforced plastic and is also referred to as fibreglass roofing. No degradation or loss of constituent chemicals occurs with dryseal grp.

Dryseal grp can be simply abraded and repaired with resin lamination in the same manner throughout its whole life. Always applied to a polyroof approved osb3 or plywood deck the system carries a 30 year durability rating and provides an exceptionally tough and hard wearing membrane. Polyroof s 185 system is the uk s leading grp roofing system and has become synonymous with premium performance.