Once under the shingles the moisture can reach the underlying structure.
Growth on roof shingles.
Sweep or hose off leaves branches and any other debris that accumulates on the roof regularly to avoid retaining.
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.
This isn t unique to abandoned houses either.
Prune off or thin out overhanging tree or shrub branches that are growing over or next to the roof to increase the.
With either your homemade cleaner or a store bought option spray the.
Algae growth on asphalt shingles algae growth may cause discoloration on roofs resulting in brown or black streaks on a rooftop.
Almost without fail every photo of an abandoned house would have black streaks on roof shingles.
Some roof shingle materials contain algaecides or fungicides which will also retard moss growth on the roof surface.
It can happen to homes that are otherwise maintained very well but why.
Algae may be mistaken for soot dirt or tree droppings most of which typically produce only localized discoloration.
How to kill moss growth on roof shingles 1.
Follow the store bought cleaner s instructions for how long you should leave the cleaner on the moss.
Using your garden hose on low pressure.
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.