Mossy Roof - Dirty Roof
May 3rd, 2012
Best practices in cleaning your roof
Unless you want to create your own version of a “green roof,” growing moss isn’t the route to go. Moss is a true roofing annoyance. Here is why. Moss spores travel in the air and attach to the smallest amount of dirt or leafy material that begins a massive growing campaign. Moss grows along the seams and edges of your shingles which ultimately causes the shingles to lift. Lifting shingles create openings for water entry and wind damage. Not good. Also, moss holds moisture. Captured moisture on top of a shingle weakens the shingle to the point of the shingle disintegrating. So what needs to be done? Two things to think about, Prevention and Removal.
Prevention and Maintenance: There are plenty of products available that remove moss. Zinc Sulfate is a common chemical that can be purchased as strips or granules. These products are found at local hardware stores. Regular roof cleaning will eliminate opportunities for much growth.
Removal: Air clean, never pressure wash. Blasting water at your shingles will compromise their integrity, (and if your roof is a Larry Haight’s roof, you will void your warranty). When pressured water is aimed at roofing material it forces shingles to raise and lift creating openings for water to travel into your home. Call our office for a referral for hiring a good company to do air clean your roof.