Fibreglass Warm Roof Detail

Always applied to a polyroof approved osb3 or plywood deck the system carries a 30 year durability rating and provides an exceptionally tough and hard wearing membrane.

Fibreglass warm roof detail.

Warm roof to outlet with sump gutter. This system is called warm deck insulation and eradicates the condensation and venting issues associated with the cold deck system. The layer of insulation is essentially placed outside of the roof. Fibreglass roofs are maintenance free and can be finished with either a smooth or non slip finish it s the perfect replacement for bitumen felt lead and zinc roofs.

Warm roof to hot service penetration. Therefore water vapour which enters the roof structure. Warm roof to coated metal drip edge. If insulation is installed below the flat roof deck this is called a cold roof.

Warm roof to parapet outlet. The fibreglass is made from a mixed resin and hardener which is painted onto a mesh mat which then hardens to form a fully waterproof surface. The flat roof covering can also be fibreglass. The first thing to consider when installing a grp fibreglass roof is the weather.

Warm deck insulation now there is a better form of insulation available for your flat roof. While it has been around in one form or another since the 40s and 50s the modern version is far superior and used throughout the construction industry. Warm roof to service penetration with pipe boot. More detail drawings here.

Warm roof to cable duct. For listed buildings topseal can also be used to simulate rolled joints without seams. Warm flat roof detail felt covering. Generally roofers discourage this method for cold climates because it can promote condensation and requires ventilating the roof which may be difficult to do in small or tight spaces.

Cold roofs a note to consider before construction. Fibreglass flat roofing also known as grp roofing or glassfibre reinforced plastic roofing. Polyroof 185 was the first ever fibreglass system to receive bba certification and has been installed on roofs and balconies since 1984. Topseal fibreglass roofing system is used extensively as a lead copper replacement or alternative for roofs gutter linings and complex architectural detail work.

How to install grp fibreglass roofing. A warm deck also provides added protection from the dangers of condensation as the structure is kept warm at a temperature above dewpoint by the insulation above it.