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.
Warm roof nz.
The minimum standard designed house in nz is a mould and asthma breeding ground.
Typical roofing membranes for use with warm roofs are.
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.
Wind uplift resistant roof concept.
These designs put the insulation above the substrate completely enclosing the roof area with a highly efficient insulation layer.
The minimum standard for nz homes would not be acceptable in any other equivalent country.
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.
One strategy is a so called warm roof as described in build 161 don t be cool about warm roofs pages 35 36.
Minimum required thermal resistance of roof structure.
With a codemark certificate for added confidence it may be installed at 1 degree for maximum design freedom.
When it comes to flat roofs international best practice is to use warm roof designs.
Warm roofs are relatively new technology in the new zealand market having been available to the international market for over 30 years.
Properly designed and well constructed these roofs avoid condensation issues as the insulation layer is positioned outside the structure.
We believe our clients should have access to the best roofing products from new zealand and around the world.
Some time in the past few decades people in nz decided that being warm in their house was a novel concept and they started adding insulation in the attic walls too but topic for another article.
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.
One if the benefits of a thermally efficient warm roof is the transfer of a building s dew point to the outside.
Exposed waterproofing allowing maintenance and inspection.
Warm roof unfortunately new zealand does not follow international best practice when it comes to the most significant asset most kiwi s will ever own their house.
Condensation risk analysis vapour barrier if required exposed waterproofing resistant to climate in new zealand.
Insulated from the outside of the building.
Warm roofs and condensation.
A multi layer torch on modified bitumen.