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.
Flat roof condensation problems.
This problem may become more common as existing buildings are altered to become eco friendly.
Keeping your flat roof condensation free is vital for longevity.
As it cools it can t hold as much moisture.
Condensation is never good news for a flat roof.
It is the leading cause of the deterioration of trusses.
Condensation is a particular problem in roofs above rooms which generate a lot of moisture such as kitchens and bathrooms.
If your roof deck or insulation is developing water droplets chances are your forehead is too.
Picture a cloud of moisture floating overhead between the rafters.
The cold deck solution.
There are two forms of flat roof construction which can reduce the risk of condensation forming.
That excess moisture ends up as drops of condensation on the roof.
Although condensation in roofs may not seem like a serious problem it actually is.
Condensation will be visible on windows but not usually on walls until the problem is bad or has caused the growth of black mould.
But with proper design and maintenance principles you don t have to sweat roof condensation issues.
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.
Left unchecked or unnoticed this condensation can cause serious structural problems.
It can also reduce thermal insulation performance which can be a particular problem during winter.
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.
Flat roofs are known as being problematic with many suffering leaks.
Problems with roof damage from condensation tend to pop up during the colder winter months.
Warm wet air rises and meets the cold roof and cools.
If condensation becomes a problem for your roof there are several effective solutions to consider.
Although moisture problems in the roof assembly can be due to waterproofing deficiencies don t neglect the effect of condensation.
However doing so increases the risk of condensation forming on the elements not surrounded by insulation such as cold roof decks.
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.