To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.
Algae on slate roof.
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Regular cleaning is an important part of keeping a slate roof in working order.
Here we discuss the causes of algae moss lichens or fungal growth on roof shingles the effects of these conditions and how to cure or prevent them.
Debris and moss buildup hold moisture in the slates that can split them during winter freezes.
Step 1 fill a bucket with with warm soapy water.
Identifying removing preventing algae fungus lichens moss on roof shingles.
Step 2 dip a nylon scrub brush in the soapy water.
The seams between the shingles and the shingles edges also develop moss because they tend to be especially shaded.
Scrub the slate vigorously to remove the algae.
This thin layer on the top of the shingles expands and becomes wide thick and mat like.
Stop roof algae from coming back.
That way whenever it rains some of the metal molecules will wash down the roof and kill any algae trying to.
While you might be tempted to reach for a strong chemical or a pressure washer it s better to leave them behind and give your slate roof a little tender loving care.
Fortunately removing algae from slate is fairly straightforward.
If necessary dip a toothbrush in the soapy water.
Asphalt roof shingle defects.
Algae and other microscopic growths on the roofs are an age old problem but the solution is on the mind of both roofing contractors and homeowners.