Diamond GRP Flat Roofing System: Roofs for Life


Diamond Glass Reinforced Polyester (GRP) roofing is a specially adapted composite material made from a reinforced polyester resin that forms a tough, versatile and long lasting waterproof layer that can be applied to any substrate.

The specially designed products include: High Grade Resins, Topcoats and preformed GRP trims, as well as high quality GRP tools.

Compared to other general purpose resins available that is thick and rigid, Diamond GRP provides a thin layer over a large area with its specially blended resin that is designed to provide a thin, flexible and permanently watertight single ply membrane over any substrate.

The Diamond GRP Topcoat has special ultra violet additives that will significantly reduce the harmful effects of the sun and keep the roof waterproof for decades, withstanding extremes of temperatures as well as being unaffected by chemicals or roots.

Other benefits/uses include:
• Although normally grey, Diamond GRP can be produced in any RAL colours for unique architectural look.
• Delabole slate can be rolled in to provide a non-slip surface.
• Excellent substitute for replacing roll mop lead roofs.
• Ideal for wet-room floors as can be laid tight into corners and up walls.
• Used for waterproofing a swimming pool or pond.


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Permavent are roofing experts who design, manufacture and distribute roofing ancillaries. Their expertise incorporates all aspects of roofing and has led to them winning a Queen’s Award for Enterprise in Innovation for the Easy Roof System. This...
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