What Causes Dark Roof Stains?
Black or very dark roof stains are caused by a hardy type of algae, Gloeocapsa magma (often referred to as blue-green algae), which grows on the roof and feeds on the limestone filler in asphalt shingles.
Often the algae originates in standing water as well as in lakes and ponds. Wind, birds and other wildlife carry the algae spores to roofs from the water sources and then from roof to roof.
Most of the stains begin on the north facing side of the roof where the lack of sun keeps the roof from drying out completely. The algae normally grows for quite some time before stains are noticed. As the algae grows, it holds more moisture on the roof thus accelerating the growth process.
Health Benefits to Roof Cleaning
Having your roof cleaned not only improves curb appeal, it adds tremendous value to your homes overall worth. Removing algae, moss and lichen from your roof shingles also carries health benefits. The possibility of vent contamination will decrease and air quality inside the home will be improved.
Improve Your Curb Appeal
Today’s housing market is saturated with homes for sale. Having your roof cleaned is a great, inexpensive way to make a lasting first impression with potential buyers.
Let us make your home stand out from the others. Neighbors and house-hunters will notice the dramatic improvement we are able to make to the exterior of your home.
We are finished when you are completely satisfied with the results. Our results are always the same, “Remarkable”.
We offer over-the-phone estimates or on-site estimates any day of the week at no cost.