Warm Roof Designing

Warm roof designing buildings wiki share your construction industry knowledge.

Warm roof designing.

However if the latter is the case thermal calculations will be required in order to analyse the likelihood of condensation risk. There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Warm roofs have significant benefits over cold roofs because. Energy efficiency is improved heating and ventilation costs are reduced.

Cold roof designing buildings wiki share your construction industry knowledge. The membrane is then attached to the insulation. Hot tar and gravel also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel. As we ve seen though hybrid roofs are as likely if not more likely to occur because of on site issues without the input of designers.

Nowhere does it support the design and construction of hybrid roofs. If an existing cold roof is to be refurbished consideration should be given to converting the design to a warm roof or incorporating new insulation into the roofing system to improve thermal performance. Warm roof inverted roof. This results in the structural deck and its supports being at a temperature closer to that of the building s interior.

However a warm roof must meet the requirements of the following new zealand building code clauses. This is as opposed to a cold roof in which the insulation is below or within the roof. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm. For a warm roof on a concrete deck it may be worth upgrading the vapour control layer to a robust bitumen based product and delaying installation of the insulation and waterproof membrane.

On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure. This can be accomplished either because of the local climate or as a result of design principally through the use of rigid insulation installed above the roof deck or air impermeable spray foam insulation installed. It is usually the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction. The key is to keep the roof deck the principle condensing surface in roof assemblies sufficiently warm throughout the year.