When moss covers the roof however it can trap the moisture preventing it from properly evaporating.
Roof moss hazards.
Left untreated the clumpy greenery can cause virtually any roofing material to degrade most commonly wood and asphalt but also metal clay and concrete and thus drastically shorten its lifespan.
When it rains moss will soak up water and retain it creating consistently wet conditions on your roof.
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.
Hazards of roof moss and algae algae and moss growth can both damage your roof and the longer these substances remain on your roof the more damage they can cause.
Wilderland uses environmentally friendly and non toxic products to remove moss from your roof and guarantees its effectiveness for one year.
Moss can prevent water from flowing properly cause excessive moisture damage and even cracks in roofing.
The danger of moss lies in its ability to retain moisture.
Zinc and copper molecules kill moss and algae.
Moss on roofs can be a health hazard while people like to say that dirty roofs lower a property s value and may make it hard to sell the dirt on a roof actually shortens its life span and can even present a health hazard.
Roofs beneath tree limbs can also become mossy because of the shade and the buildup of tree debris.
In persistently mossy roof areas you could attach strips of zinc or copper to the top of the roof.
Untreated moss on a roof can be homeowner s nightmare.