Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt.
Moss ellminator for asphalt roofs.
Moss which is what shows in the pictures you sent is more worrisome because it can damage asphalt shingles.
You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller.
Wind sunlight water etc.
Keeping branches trimmed back from the roof and removing any debris that begins to accumulate should be part of a regular roof maintenance program.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
If you have an asphalt roof and want to keep it looking great and working well check out these facts you should know about moss growth and asphalt shingles.
Hose off and brush all moss loose from your roof shingles.
While moss is typically not harmful it could cause minor damage to a roof.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
Moss retains moisture which could pose a problem for wood shingles where rotting and decay could occur.
Moss build up can lead to roof damage or shingle blow off if left unchecked.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
If moss or algae becomes visible clean the roof.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
Algae and moss growth on roofs at a minimum is an unsightly nuisance.
While algae doesn t actually harm your roof it can impact its aesthetic appeal.
Once moss has adhered to wood shingles the moss can be harder to remove than it is from the relatively smoother planes of composite or asphalt shingles.
It is this very oil tar and asphalt which protect your shingles from the elements.
However you can quickly fix the issue with this homemade moss killer for roofs.
Moss can seriously impact asphalt shingle performance by causing them to curl up and blow off eventually resulting in leaks.
Wood s porous surface is prime real estate for moss growth.
Cup oxygen bleach.
Further climbing on your roof frequently to clean off growth can damage your roof and shorten its lifespan by loosening the granules on.
If the shingles are wood this process can happen at an alarming rate.
A thick growth of moss works like a sponge keeping the roofing damp for long.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
There are many ways to remove moss that tends to grow in shaded areas.