Moss Growing On Shingles Of Roof

This moisture increases the weight of the roof which increases the risk of collapse decay leaks and water damage.

Moss growing on shingles of roof.

Moss isn t just attracted to moisture. Once the spores get on the roof they gather in the spaces between shingles and grow into thick spongy moss. Since moss thrives in damp environments areas of the roof that get the least amount of direct sunlight like north facing sections or areas shaded by tree limbs make an ideal place for it to grow. Moss starts as a thin green layer on and between shingles but then it proceeds to lift those shingles up as it grows allowing water to seep underneath.

Moss and green algae require dead organic matter for nutrients so you can prevent their growth by blowing off the shingles to remove junk from trees that tend to accumulate between the tabs. Moss and lichens are more than a cosmetic issue on many kinds of roofing materials asphalt shingles roll roofing wood shingle roofs wood shake roofs. Moss on a roof begins with a thin dusting of green that you may notice only from low angles. 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.

Over time moss can also work its way under shingles lifting them up. You can apply the copper solution to new roofs to prevent any growth for a number of years. This thin layer on the top of the shingles expands and becomes wide thick and mat like. It helps keep your roof wet by storing moisture and preventing proper drainage.

Moss keeps the roof wet. By holding moisture against the roof surface lichens but more so moss speed the wear of the asphalt shingle surface in freezing climates by increasing frost damage to the mineral granule coating on the shingles. Moss growth will also interfere with proper drainage of water off the roof as water needs to trickle through or around the moss instead of running straight down to the gutters. The seams between the shingles and the shingles edges also develop moss because they tend to be especially shaded.

Once under the shingles the moisture can reach the underlying structure.