Roof Damage From Algae

If you re trying to sell your home you may run into issues if you have roof algae.

Roof damage from algae.

If your roof serves as an energy efficient system this could end up costing you additional money in terms of heating or cooling bills. No pressure washers please. 8 ways roof algae can affect your roof appearance. 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.

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. 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. See lichens on roofs for an example. If your home has a highly reflective roofing system algae growth can affect the roof s ability to reflect sunlight.

Roof algae are signs. 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. Algae and lichen. Moss can damage shingles especially asphalt and wood shake shingles.