A grp flat roof. Quite an easy one. After removing slate to the rear of the roof we stripped off the existing 2 layer felt roof and reboarded the roof in OSB decking. We then installed our trims to the perimeter before bandaging all corners and laps and allowing to hard cure. The 1st layer of the grp system was then applied, activated liquid resin and fibreglass matting, again allowing to hard cure before an activated topcoat was applied. A further topcoat was applied the following day and the slate roof reinstated to the rear of the roof.