Why Does Moss Grow on Roofs?

August 26th, 2019 in General
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Moss growing on your roof is not only unsightly, but it can also cause damage to the delicate shingles on which it is growing. It might not seem like asphalt shingles are the ideal environment for moss to grow, but in fact, there are some factors that allow moss to thrive.

Why does moss grow on roofs?

First, your roof is an ideal environment for growing moss as it is a warm, humid and moist environment. A roof is exposed to lots of water and gets plenty of sunlight, both things needed for moss to thrive.

Like any organism, moss also requires nutrients. A roof receives plenty of organic matter in the form of fallen leaves and other debris. This gives the moss plenty of nutrients to allow it to continue to grow and thrive.

The problem with moss is that is acts similar to a sponge and is able to absorb and hold onto water for a long period of time. This allows it to survive and thrive when it is hot and dry. However, when freezing temperatures arrive, the water freezes and expands. This can cause the shingles to pull apart and even crack, meaning water can seep in and rot your roof.

What can be done?

To avoid having moss growing on your roof, cleaning and prevention are key. First, pressure washing can damage the delicate shingles, so proper roof moss removal for your Maple Ridge roof is needed. Using a cleaning and moss removal service such as the one provided by Nicks Cleaning can ensure that moss is removed, without causing damage to your roof.

Prevention should also be taken to prevent the moss from returning. Keeping your roof free of dirt and other debris can help deprive moss of the needed nutrients to grow. Regular roof cleanings, as well as trimming back tree branches and other debris sources can help with this. Finally, make sure your roof is well-ventilated, as this can help to reduce the humidity and make it more difficult for moss to thrive.

For all of your moss removal and roof cleaning needs in Maple Ridge, make sure you choose Nick's Exterior Cleaning.

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