Warm Roof Nz

Warm roofs and condensation.

Warm roof nz.

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. Warm roofs are relatively new technology in the new zealand market having been available to the international market for over 30 years. The minimum standard for nz homes would not be acceptable in any other equivalent country. 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.

These designs put the insulation above the substrate completely enclosing the roof area with a highly efficient insulation layer. A warm roof for low slope roofs is a roof where the roof insulation is installed on top of the structure i e. We believe our clients should have access to the best roofing products from new zealand and around the world. 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 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. Wind uplift resistant roof concept. Insulated from the outside of the building. Mainly installed in roof refurbishment.

Exposed waterproofing allowing maintenance and inspection. With a codemark certificate for added confidence it may be installed at 1 degree for maximum design freedom. Minimum required thermal resistance of roof structure. A multi layer torch on modified bitumen.

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. No roof sheathing and metal clad roofs both allow warm air to accidentally escape thus magically no condensation problems. Condensation risk analysis vapour barrier if required exposed waterproofing resistant to climate in new zealand. Properly designed and well constructed these roofs avoid condensation issues as the insulation layer is positioned outside the structure.

When it comes to flat roofs international best practice is to use warm roof designs. The minimum standard designed house in nz is a mould and asthma breeding ground. But more than that rooflogic believes its customers should be offered a system. One if the benefits of a thermally efficient warm roof is the transfer of a building s dew point to the outside.