Brian C. Jackson is a certified roof cleaner for cleaning ugly black stains on the roofs of homes through out New Hampshire. Even towns like Bedford, New Hampshire 03110 has homeowners wondering what all the black staining is and how to clean it off of there roof. The staining is called gloeocapsa magma and it is an algae that is feeding on the roof which will shorten the life of the roof if it is not cleaned. The ARMA (Asphalt Roofing Manufacturers Association) does not approve or recommend the use of a high powered machine or a pressure washer to clean a roof. The proper way to clean a roof is with a safe soft wash / non pressure application that will not damage the roof or dislodge the roof granules and this application wont void the warranty on the roof. To get more info or an estimate call Brian @ (603)401-8408 or visit www.jacksoncontracting.net to see all the info on all of the exterior soft washing services.