In wet climates, it is very usual that most roofs develop black and green stains, specially over a long period of time. The most common reason is because of Algae, lichens or moss.
Algae thrives on pollen, organic materials within the roof and dust as it is a living organism. Moisture helps algae grow.
Lichens are a type of fungus. The problem is that it is a composite organism and they have roots that penetrate into the organic material of the shingles.
Moss are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
So the best solution to this problem is a good roof cleaning.
We, at Master Roof in Milford, MA, offer the roof cleaning in the market. We have thebest products and best service 24/7.
MasterRoof.com Roof Repair in Massachusetts,New Hampshire, and Rhode Island
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