Roof Algae greatly deters sunlight from being reflective on your asphalt shingles
increasing temperatures!

White is hottest and blue is coolest. Compare the Blue squares (white roofing material) on roof and White Squares (Darker roofing material). Roof Algae greatly darkens and deter’s sunlight from being reflective on your asphalt roof shingles thus increasing internal structure temperatures. You can lower your energy bill  30% by getting your roof cleaned and prevent high roof temperatures by not letting algae absorb the suns rays.  
Our guarantee is for two years (24 months) that your roof will remain free of algae. It is unlikely that algae will reappear but if it does,
at no additional cost to the customer the roof will be treated and cleaned again. We stand by our service and products!