What is a warm roof? Well, it’s many things, but most critically, it is a roofing system designed for low slope roofs, in which the building is insulated from the outside, rather than the inside. This in itself has a host of benefits, most notably the fact that by installing insulation on the outside of the building, the dew point is also moved to the exterior rather than interior of the building envelope.
Having the dew point – the point where the hot and cold air meet and condensation forms – outside rather than inside, means any condensation created at this point is kept outside the building, mitigating the risk of any structural materials becoming damp or rotten due to condensation forming on or around them.
“It also takes away the need for venting from the roof,” Viking Roofspec’s Brendon Sutton says. “This means no air is escaping from the interior of the building out through vents in the roof, which, in-turn improves a building’s energy efficiency.”
But perhaps what is just as enticing about warm roof technology as these critical benefits, is its versatility in scope, design and installation.
Viking Roofspec’s warm roof system is created with rigid insulation panels called polyiso, made by Kingspan Insulation. “Their product/service offer is unique in that they provide the most comprehensive custom-tapered polyiso scheme in New Zealand,” Brendon says.