Flat Roof Condensation Problems

This problem may become more common as existing buildings are altered to become eco friendly.

Flat roof condensation problems.

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. However doing so increases the risk of condensation forming on the elements not surrounded by insulation such as cold roof decks. 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. Condensation is a particular problem in roofs above rooms which generate a lot of moisture such as kitchens and bathrooms.

Condensation is never good news for a flat roof. Warm wet air rises and meets the cold roof and cools. Although condensation in roofs may not seem like a serious problem it actually is. However in my own experience the problems with leaking flat roofs are usually as a result of either poor workmanship installing the roof membrane poor maintenance by the building owner or as a result of age.

This is especially so if it occurs within the roof s structure itself as this can lead to decay in the roof timbers which is very difficult to spot. The cold deck solution. As it cools it can t hold as much moisture. There are two forms of flat roof construction which can reduce the risk of condensation forming.

Keeping your flat roof condensation free is vital for longevity. It is the leading cause of the deterioration of trusses. Flat roofs are known as being problematic with many suffering leaks. If your roof deck or insulation is developing water droplets chances are your forehead is too.

Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation. Despite the many benefits of using the old roofing styles which involve the incorporation of selectively porous and completely permeable membranes they are the major causes of condensation in roofs. Condensation is the most easily fixed type of damp problem. Picture a cloud of moisture floating overhead between the rafters.

But left for too long it can lead to mould and more expensive damage. That excess moisture ends up as drops of condensation on the roof. Modern living insulation condensation and mould in times gone by houses would have had single glazing air vents built into the brickwork and open fireplaces that would have literally drawn any stale air outside. Find out how to get rid of condensation including cheap diy tips and things you can do for free.

Condensation will be visible on windows but not usually on walls until the problem is bad or has caused the growth of black mould.