Fibreglass Roofs across Greater London

A GRP fibreglass roof is built on the roof itself. Resin and glass-fibre matting are laminated over a prepared deck, then sealed with a pigmented topcoat once the laminate has cured. Because the whole surface sets as one continuous layer, there are no laps or joints for water to work through. GRP also forms neatly around corners and upstands, which is why it is often chosen for dormers, small extensions and roofs with awkward shapes.

GRP is widely used on balconies and roof terraces too, as topcoats are available with a textured, anti-slip finish that you can walk on. Ashlar Roofing lays fibreglass systems with preformed edge trims and corner details bonded into the laminate, so the edges are as watertight as the main roof. Fibreglass is weather-dependent: the resin needs a dry deck and suitable temperatures to cure, so laminating is timed around the forecast and never rushed through damp days.