The roofing materials that cover your home are made out of porous materials, such as clay, which have the ability to absorb moisture. While roofing tiles are considered a low maintenance roofing material, the presence of moss on a roof can become quite the annoyance to deal with. Here is what you need to know about dealing with roof moss.
The Cause Of Roof Moss
Moss won't grow on a roofing tile without some assistance, because the material alone doesn't provide a source of food. It requires a layer of debris for the moss to feed off of and trap moisture against the roofing tile.
Some roofing tiles are more prone to moss than others. It's more likely to happen to tiles that are on a shaded part of your home and have water that easily collects on the surface. You may have one surface of the roof that looks perfectly fine, but the opposite side has moss growth due to being in the shade during the day. Your roof is also more susceptible to moss growth when you live along the water, which is due to the moisture in the air.
The Damage Caused By Roof Moss
The good thing about roof moss on roofing tiles is that it does not cause structural damage to your home. This is the opposite of what happens with asphalt shingles, which can allow moss growth to lift the shingle off the surface of the roof and allow water to get underneath it. With roofing tiles, you'll mainly have cosmetic damage in the form of stains where the moss once was.
The Removal Of Roof Moss
It is possible to remove moss and the stains left behind without causing damage to the roofing tiles. However, it's a job that you should leave to a roofing contractor to do for you. Even walking on a roofing tile without the proper precautions could lead to damaged roofing material that needs to be fixed. The benefit of leaving this task to a roofing contractor is they know how to walk on the roofing material without causing damage to them. The best way to clean roofing tiles is with a power washer, which will spray a bleach cleaning solution on the surface that leaves the tiles looking new.
The Prevention Of Roof Moss
The best thing you can do is trim back tree branches that create a shadow on your roof where moss can grow. You'll also need to remove visible debris that causes water to collect on the surface.
For more information, contact your local roofing company.