There are several ways that mosses growing on roofs, decks, and sidewalks can be physically controlled. Keep in mind that mosses grow well in moist, shady locations.
Moss growth can be controlled and
prevented in the future by decreasing the amount of shade and
increasing light exposure on the roof, sidewalks, and deck.
Trimming overhanging branches is an effective way to decrease
shade. This method is beneficial because it is inexpensive
and controls the growing conditions that mosses prefer. However,
trimming high branches can be dangerous, so special care should
be taken (Cedar Shake & Shingle
A high power pressure washer can be used as an effective method for removing mosses. However, mosses are likely to come back because this method does not alter the underlying conditions that mosses favor. Also, one should use caution when using the pressure washer because it can damage the roof and deck (Cedar Shake & Shingle Bureau, 2000).
Regularly removing organic debris, such as leaves and branches, will allow for more sun exposer and less moisture retention on the surface of the roof, decks, and sidewalks. This method is both effective and inexpensive, but must be done regularly.
Mosses on roofs, decks, and sidewalks can also be removed with a stiff push brush, wire brush, or flat-edged shovel. This is an inexpensive and effective way to remove moss.
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