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  • GRP Fibreglass Flat Roofing in Didsbury, Manchester.

    As with all GRP roofs they need to be laid onto an 18mm OSB3 decking. Nothing laminated like marine ply, or the GRP system and liquid will not key into and adhere to the boards. This will result in the whole system delaminating away from the board and eventually cracking. So always make sure the installer of your GRP Fibreglass roof uses the correct decking to avoid problems like this occuring.

    This was a GRP fibreglass system we installed on a bay roof in Didsbury Manchester in conjunction with a slate reroof of the property. Having removed the existing felt flat roof and installed our new 18mm OSB3 interlocking deck we fitted all our preformed trims to the perimeter. We then installed a 4 layer liquid and Fibreglass matting GRP system, inclusive of dark grey topcoat