The presence or absence of much sunlight on a roof surface is often a determining factor in the amount of moss or lichens growth more sun less moss and lichens.
Moss growth on roof.
Moss growing on any roof surface will be more severe on roof sections that area shaded and exposed to periodically damp cool weather conditions.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
When it rains zinc is released onto the roof and powerfully inhibits moss growth.
This thin layer on the top of the shingles expands and becomes wide thick and mat like.
Moss on a roof begins with a thin dusting of green that you may notice only from low angles.
Hose off and brush all moss loose from your roof shingles.
If you ignore the moss on your roof for years at a time you may significantly shorten the lifespan.
This means that it needs flowing water in order to reproduce and survive and provides a great indication as to why you won t find moss on an area of a roof that receives a large amount of sun.
The seams between the shingles and the shingles edges also develop moss because they tend to be especially shaded.
When moss covers the roof however it can trap the moisture preventing it from properly evaporating.
Zinc strips usually last for 1 year and work best if started in a moss free environment.
Moss is a plant without roots.