Single Ply Roof Installation at Montracon, Doncaster
Due to the number of leaks in the office block at Montracon in Doncaster, Ballyvessey Holdings contracted us to install a new single ply roof covering.
The existing roof covering consisted of a felt and shingle shale covering laid on galvanised decking sheets with a 40mm insulation build-up. The shale stones were cleared away into skips via waste chutes. 9mm OSB board was then laid on top of the existing felt covering, this was to eliminate any reaction between the felt covering and new Monarplan membrane covering. The new Monarplan membrane covering was then installed and mechanically fixed with the seams being hot air welded using a push along hot air welder (Dog).
The edge protection was double handrailed with adjustable ballast legs, this allowed us to lift each leg individually to install the membrane around the perimeter of the building from the safety of the roof and existing control measures.