This could mean your roof has vegetation, fungus, mold, or algae growth, or that the shingles’ protective granules have been lost. This doesn’t mean you need to replace your roof, but these stains can reduce curb appeal. Cleaning the shingles is an option, but that could shorten their life. Fortunately, StainGuard® protection is available on many GAF Shingles, including Timberline® Cool Series Shingles, Timberline® Natural Shadow® Shingles, and Timberline® ArmorShield™ II Shingles. (StainGuard® protection is available only on shingles with StainGuard®-labeled packaging. See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions.)

Many of these problems are due to roof shingles coming to the end of their life expectancy, which is usually anywhere from 20-30 years, but can also be caused by poor roof installation.  With over 30 years of experience, Artech Roofing can let you know the condition of your roof, if the roof needs to be done and, if not, how many years you can expect it to last.  We can also check to make sure that your roof was done properly to determine if there are any problem areas.

Proper installation and using quality products is also key when installing a roof.  Artech Roofing. uses only the finest roofing material from leaders in the roofing industry, such as GAF/ELK, Certainteed, Tamko and Polyglass.  Before installing the roof and upon our estimating your home, we will gladly explain to you the process of installing the roof and the products being used.  Artech Roofing, Inc. uses only the finest materials for all our jobs, and all of our roofers are highly skilled in all forms of asphalt shingle roofing and flat roofing.

Possible cause: Environmental pollutants; vegetation, fungus or algae; loss of granules due to age of shingles