Roof Damage From Algae

Moss can damage shingles especially asphalt and wood shake shingles.

Roof damage from algae.

See lichens on roofs for an example. But one plant life you don t want to see on your roof is gloeocapsa magma a blackish algae that thrives on moisture seems to have an affinity for material used in some roofing products. No pressure washers please. If the algae have only damaged a couple of shingles then repairs can fix the problem.

If your home has a highly reflective roofing system algae growth can affect the roof s ability to reflect sunlight. If you re trying to sell your home you may run into issues if you have roof algae. The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae. 8 ways roof algae can affect your roof appearance.

They re likely to damage the shingles just be sure to wet your foundation plantings first and rinse everything in clean water when you re done. Unlike algae moss and lichens do damage roofs both by holding water on the roof and by the mechanical damage to the roof s protective coating or mineral granules caused by both their roots and in freezing climates by the freezing action of water trapped within the roof coating by those invaders. Roof algae are signs. However if the algae have penetrated deep into the roof affecting most of the roofing tiles or if your roof is old and in need of a repair generally then a roof replacement is probably more suitable.