Lichen On Roof Shingles

Oxygen bleach fill a.

Lichen on roof shingles.

Lichen will build up on the north side of buildings and in areas shaded most of the day. When this surface moisture freezes in cold temperatures it can lead to frost damage to roof shingles and other exterior surfaces. After just 16 years lichen and moss have taken hold on the surface of the asphalt roof shingles on the north side of the house the first step in maintaining your roof is to roof it right. Roof lichen or more regularly recognized roof moss or algae is a very common sight on many shingled or tiles roofs whilst appearing more like a cosmetic problem the roof lichen can cause serious harm to your roof.

So if you attempt to remove it with a hand tool you may accidentally remove the protective top layer of your roof shingles as well. To remove lichen and moss from the roof try the least toxic method for moss and lichen removal first oxygen bleach before moving on to a harsher method chlorine bleach. Cleaning removes materials that trap water on the surface of the roof. Lichen avoids galvanized steel copper and zinc because these metals work as a natural biocide.

This can cause your roof shingles to bend warp and even separate from each other over time. Lichen holds moisture in place against surfaces which speeds up normal wear and tear. Sweep off dirt branches and debris and then wash down the roof surface with a garden hose with a pressure nozzle. It holds moisture and can cause roofs to bend and bow inward and eventually collapse if left untreated.

Lichens can be successfully prevented or at least minimized depneding on climate by choosing an algae lichens resistant asphalt shingle product when re roofing. Green algae black mold and moss begin to die off on contact. Inspect the roof shingles visually. If you re not doing the work yourself choose a qualified professional roofer to do the job.

Metal salts washing down the roof also are toxic to both algae and lichens that like to grow on roof surfaces. I also have had good success by installing metal strips high on the roof. The combination of the wind and the rain breakdown the growth and rinse your surfaces clean over time. I m able to walk on my asphalt shingle roof with ease but the water spray cleaned off all the lichens moss and algae leaving the roof looking like new.

I constantly stopped to check to see if i sep 19 2018 learn how to remove lichen from your roof and all other outdoor it can lead to frost damage to roof shingles and other exterior surfaces. Lichen can be really tricky to remove because it grips strongly onto the surface.