Insulated from the outside of the building.
Warm roof nz.
Exposed waterproofing allowing maintenance and inspection.
The cold roof system has worked in new zealand for decades mostly by accident.
A warm roof for low slope roofs is a roof where the roof insulation is installed on top of the structure i e.
Roof logic is committed to providing specifiers installers and building owners with roofing systems that set a new standard for commercial roofing in new zealand.
In a warm roof assembly you place a rigid insulation layer above the structural deck and then place the membrane over that.
Condensation risk analysis vapour barrier if required exposed waterproofing resistant to climate in new zealand.
We believe our clients should have access to the best roofing products from new zealand and around the world.
With a codemark certificate for added confidence it may be installed at 1 degree for maximum design freedom.
At present warm roofs are mainly installed in new zealand in roof refurbishments such as when a low slope roof needs replacement or the roof slope of an existing roof needs to be increased.
Properly designed and well constructed these roofs avoid condensation issues as the insulation layer is positioned outside the structure.
Wind uplift resistant roof concept.
One simple way of mitigating risk is to design a warm roof which keeps the interior surface temperature of the roof assembly above the dew point temperature.
These designs put the insulation above the substrate completely enclosing the roof area with a highly efficient insulation layer.
Warm roofs are relatively new technology in the new zealand market having been available to the international market for over 30 years.
Minimum required thermal resistance of roof structure.
However the benefits of warm roofs are making them more popular for new low slope or skillion roofs.
This keeps the structural deck warm.
Warm roofs and condensation one strategy is a so called warm roof as described in build 161 don t be cool about warm roofs pages 35 36.
The traditional cold deck flat roof simply consisted of a structural timber deck with a waterproof covering directly applied to the top of the deck with insulation being somewhat of an afterthought.
In other words condensation is not possible.
But more than that rooflogic believes its customers should be offered a system.
Warm roof the government and new zealand consumers are demanding energy efficiency is designed into modern buildings and with 30 35 of heat going through the roof in an uninsulated house roof insulation needs to be a focus during a building s design.