The importance of the right flat roof construction
Do you own a home or building that features a flat roof? Then you most likely know of their vulnerability to unique problems or issues. In theory, a flat roof should not experience any more problems than a normal sloped roof, but sometimes because of a poor build or negligence, problems arise, and they can be significant. Flat roofs made of tar or asphalt can last as little as a decade, shingles rooftops generally do better and last around 35 years, while a slate pitched roof can stand for more than a century. Whatever type of roof you own, regular checks and routine maintenance will prevent costly repairs.
Gravel flat roof
A pea gravel roof surface used on flat roofs provides an effective coat with UV protection. Gravel also helps to weigh down roofing materials, reducing the risk of damage caused by high winds. UV protection occurs when shingle or gravel pieces absorb sunlight, helping to prevent roofing materials become dry and brittle over time. Of course, the efficacy of gravel is very dependent on how well it has been fixed to the roof. If it is applied badly, exposure to the elements will still occur to the roofing materials underneath.
When shingle is laid, it must be bound to the surface of the existing material. Typically, this process occurs when the mastic asphalt is still warm or can be stuck down with adhesive asphalt. Gravel or shingle placed on a dry surface will be completely useless. That is why it is so important to use a reputable company with a lot of experience. For a Cheltenham Roofer, visit stormroofingltd.co.uk/
Flat roofs are more susceptible to the wind than the usual pitched roof, so if gravel is not weighted, nails attaching roofing materials to the wood are completely exposed and the only thing holding your roof against the forces of nature.
Moss and Silt
A flat roof, despite the name, must be constructed with a slight incline for drainage purposes. If you find a build-up of moss or mud, it could be that your roof has not been built with the correct slope. A flat roof needs a little side to prevent water pooling. If there are signs of growing vegetation, it is an indication that there is too much moisture around. The consequences of a puddle of water, includes damage to your wood, warping and the possibility of interior leaks.
Many insurance companies view a flat roof as vulnerable and you may have trouble getting home insurance, especially if more than a third of your property consists of flat roofing. It is seen as too risky. Additional problems include flat roofs that have been made of non-standard industrial materials. The use of non-standard materials always has an impact on home insurance quote.