Steve Freeman has been Fibreglassing for over 20 years, working on domestic properties, power stations, accommodation blocks, office blocks, and on other numerous large and smaller projects. A Fibreglass Roof is a Fibreglass laminate applied over a good quality smart ply OSB 3 deck With pre-formed Fibreglass edgings and a layer of coloured Roofing Topcoat. Fibreglass is a lightweight extremely strong robust material made up of Polyester Resin, Reinforced by Fibreglass matting, which lends itself easily to the application of GRP Flat Roofing construction.