Why Is There Green Moss On My Roof

The roots can lift up shingles and constant moisture can lead to bacteria and mold growth.

Why is there green moss on my roof.

Because moss or lichens growing on a roof surface will hold moisture on the roof longer than other areas these growths can reduce the life of the roof covering. Moss is a non vascular plant that absorbs water through its leaves instead of roots. Moss commonly thrives in environments that are damp and shaded. 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 absorbs the moisture from the damp environment and establishes roots on your roof causing the beginning of roof degradation. This can be done by having it swept and blown once or twice a year when dry to remove leaves twigs and any dirt particles. Hello wood rot and leaks. Dirt or particles on roofs can create places for moss to start growing so the primary preventative each year is to clean your roof.

If there are large trees near the home that shade parts of the roof moss can grow in abundance as there is a lack of direct sunlight. Moss thrives in cool damp environments. If you have moss on your roof it s likely because your roof is shaded by trees or other structures allowing moisture to linger and moss to grow.