Roof Moss
Information on Roof Moss
Moss on Shingle Roof |
Overhanging Trees have Been a Catalyst for Excessive Moss Growth on this Roof. |
The first step to moss control is prevention by placing a zinc or copper strip under the edge of the ridge cap. The zinc or copper changes the composition of rain so that moss growth is reduced and/or stopped. Some composition materials come with zinc granules already embedded in the shingles.
If moss is already growing on the roof, cleaning agents can remove the existing moss growth. This, however, is not a quick fix, and may require repeated applications to control the problem. These products can be very toxic, and should be used only according to the manufacturer's instructions.
After the moss has been killed, the dead moss will remain on the roof. Though unsightly, it is no longer a hazard to the roof. The dead moss can be removed with a soft broom, but caution should be used when doing this, since walking on the roof (especially older roofs) can cause significant damage.
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