There are many fungi that are both destructive to the roof and repulsive to look at that can settle on a roof. The bulk of matter is made up of moss, lichen, black algae (black mould), green mold/algae, and elimination has become a necessity. For a variety of reasons, roofs need to be cleaned; to prevent destruction and early replacement, to control the increased cost of energy and to correct the devaluation of the property. To know more view here
The most frequently impacted roofs are asphalt shingle, cedar shake, and tile roofs, each differently impacted. Asphalt roofs are destroyed more quickly than the others. Until they crack and fall off, fungus can grow under shingles lifting them. The fungus tendrils or “roots” also dig through the reflective granules causing them to dislodge and fall off, this action results in the thinning of shingles taking years off the expected life of the shingle as they then curl and cup. When a cedar roof is covered with fungus, the fungus traps moisture in the wood that causes rotting, which invites wood feeding insects, and that quickly deteriorates the integrity of the wood. Cedar roofs need to remain dry to last.
Tile roofs are most commonly found in the south and although fungus can’t destroy tile like it does asphalt or wood, tiles are destroyed by having the weight roof cleaners walking on the roof, tile are fragile especially after baking in the sun for years, the damage isn’t apparent at first but as the cracks wash out with rain water they will become dislodged and fall off. In addition to the fungus’ destructive damage, the home owner can expect an increase in energy bills. Fungus is usually dark coloured and sunlight is absorbed by dark colours, which increases the heat in attics, crawl rooms and second or top floors, causing the air conditioners to work overtime to cool those rooms, resulting in higher energy bills than normal.