Mildew Resistant Roof Shingles

There s more algae on roofs today because manufacturers use crushed limestone within the shingle as a filler so they don t have to use as much asphalt.

Mildew resistant roof shingles.

If you live in an area susceptible to algae growth be sure to specify this type of shingle when replacing your roof. Any of the major name brand shingle manufacturers gaf certainteed owens corning etc have multiple ar algae resistant offerings. Watch roof algae and moss video below. There s no such things as an algae resistant shingle.

Following installation it s easy to power wash mildew or mold ridden shingles but damaged individual shingles often need to be replaced rather than repaired and the plywood decking required. Gives homeowner peace of mind based on decades of owens corning testing and experience with algae resistance protection. Usually what you see on a roof is algae not mildew. Per bundle 21 pieces model 0489180 view the timberline hdz shingle collection.

They re often actually caused by tiny bacteria commonly called blue green algae scientific name. Roof shingles with copper algae resistant outdoor roofing text. This shingle is only available in 5 colors but they are relatively pleasing and if you are looking for an impact resistant shingle this is a good value for the money. Many homeowners mistake these stains for mold mildew moss or even tree sap.

Standard roof shingles are quite susceptible to the unsightly black staining smears blotches and streaks caused by algae spores. The best way to prevent this unsightly problem is by installing streakfighter algae resistant shingles. When you see the dark stains you re looking not at the algae but at the hard dark coating it generates to protect itself from damaging uv rays. An advantage size shingle from iko which is simply a larger cut tab shingle than other brands makes for a standout look some like and others find odd.

Has a limited 10 year warranty see actual warranty for details limitations and requirements. In recent years roofing manufacturers have begun mixing copper granules into roofing products to produce algae resistant shingles. The important thing to remember is that the ar coating is not permanent and will not last for the life of the shingle regardless of manufacturer. Since asphalt is an expensive petroleum based product they try to minimize it by using more crushed limestone.

Copper strips at the top are the best way to stop black algae stains see below. Some shingles come with small amounts of copper in the granules. Gaf timberline hdz charcoal algae resistant laminated high definition shingles 33 33 sq.