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 growing on shingles of roof.
This thin layer on the top of the shingles expands and becomes wide thick and mat like.
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.
Moss on a roof begins with a thin dusting of green that you may notice only from low angles.
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.
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.
Once the spores get on the roof they gather in the spaces between shingles and grow into thick spongy moss.
Once under the shingles the moisture can reach the underlying structure.
Moss isn t just attracted to moisture.
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 growing on a roof may or may not be considered attractive or quaint but there is no doubt that extensive moss on a roof can seriously damage the roof by growing under and raising or loosening.
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.
Hello wood rot and leaks.
The seams between the shingles and the shingles edges also develop moss because they tend to be especially shaded.
The resulting constant exposure to water can degrade shingles.
This moisture increases the weight of the roof which increases the risk of collapse decay leaks and water damage.
Moss keeps the roof wet.