Wood s porous surface is prime real estate for moss growth.
Moss on asphalt shingle roof.
Moss build up can lead to roof damage or shingle blow off if left unchecked.
Hose off and brush all moss loose from your roof shingles.
Moss and lichens are more than a cosmetic issue on many kinds of roofing materials asphalt shingles roll roofing wood shingle roofs wood shake roofs.
By holding moisture against the roof surface lichens but more so moss speed the wear of the asphalt shingle surface in freezing climates by increasing frost damage to the mineral granule.
However scrubbing is likely to damage the asphalt shingles and remove their granules.
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.
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.
Then when you re on the roof spray the cleaner on the asphalt shingles and let it sit for 20 minutes before removing it with water from your hose.
Algae and moss growth on roofs at a minimum is an unsightly nuisance.
Moss which is what shows in the pictures you sent is more worrisome because it can damage asphalt shingles.
Keeping branches trimmed back from the roof and removing any debris that begins to accumulate should be part of a regular roof maintenance program.
Pressure washers can be very strong and certainly strong enough to break a shingle s adhesive and lift it up.
You may be tempted to scrub the moss off the shingles because moss grips shingles quite strongly.
Written by roof doctor on november 28 2018 posted in roof blogs.
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.
What you should know about moss growth and asphalt shingles.
To get rid of any remaining moss scrub the area with a medium stiff bristled brush but take care not to scrub too hard as this could dislodge your asphalt shingles.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.