Growth On Roof Shingles

With either your homemade cleaner or a store bought option spray the.

Growth on roof shingles. Algae growth on asphalt shingles algae growth may cause discoloration on roofs resulting in brown or black streaks on a rooftop. On an asphalt or possibly some treated wood shingle roofs shingle chemistry is also involved in moss lichens and algae growth or resistance to it. How to kill moss growth on roof shingles 1. Safely set up your ladder near the moss.

Almost without fail every photo of an abandoned house would have black streaks on roof shingles. Using your garden hose on low pressure. Algae may be mistaken for soot dirt or tree droppings most of which typically produce only localized discoloration. Prune off or thin out overhanging tree or shrub branches that are growing over or next to the roof to increase the.

It can happen to homes that are otherwise maintained very well but why. This isn t unique to abandoned houses either. Black streaks on shingles aren t caused by leaking tar. Some roof shingle materials contain algaecides or fungicides which will also retard moss growth on the roof surface.

Rather they are caused by a hardy algae known as. This lack of drainage not only helps the moss grow and thrive but also may damage your roof because it increases the risk of water getting under the shingles.