White Shingle Roof Algae Stains

Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them.

White shingle roof algae stains.

White stains on wood shingle roofs. But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores. I covered our asphalt shingle roof about five years ago with white 50 year guaranteed shingles that had algae prevention treatment but now the entire north side of our roof is black with algae i bought the shingles from lowe s in marianna florida. When that happens it is generally caused by mildew algae mold or dirt stains.

Roofing manufacturers have tackled the problem of roof algae by creating shingles containing copper which is deadly to algae. Do it yourself and save big bucks. To remove the existing stains you need to use a safe cleaning solution. Replacing the shingles on your roof just because you have black stains is not necessary however and you should be suspicious of any roofer that suggests roof shingle replacement as the only solution to your algae problem.

The white stains shown on this wood shingle roof are in fact not a stain but an absence of lichens or moss. Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty. Believe it or not there are several treated wood deck cleaners that will do the job without hurting you the roof your gutters and any vegetation below. It is not uncommon for roof shingles to turn black over time.

Algae lichens and moss for example. Many of these shingles are guaranteed to kill the algae for the life of the shingle.