Flat Roof Condensation Risk

There are two forms of flat roof construction which can reduce the risk of condensation forming.

Flat roof condensation risk.

The cold deck solution. This type of roof has normally been used over small extensions to dwellings using timber joists and plywood deck. Check it isn t interstitial condensation. However doing so increases the risk of condensation forming on the elements not surrounded by insulation such as cold roof decks.

As long as the roof accords with good practice then a more complex calculation method should not be necessary. Designers should therefore take a cautious approach and adopt fail safe solutions. To that end the standard lists three acceptable scenarios for the placement of flat roof insulation. This problem may become more common as existing buildings are altered to become eco friendly.

Nowhere does it support the design and construction of hybrid roofs. Flat and low slope roof designs to avoid moisture condensation problems flat roofs call up a whole new breed of building moisture problems how to avoid moisture traps under flat roofs avoid mold rot caused by moisture trapped under un vented flat roofs questions answers about the cause cure prevention of moisture problems in flat roofs and similarly hard to ventilate structures. Cold roof warm roof inverted roof. A flat roof should be designed to minimise condensation and a condensation risk analysis should be undertaken taking into account positioning of insulating materials vapour control layers ventilation thermal insulation and the choice of materials.