410-635-1160
Power Washing & Roof Cleaning
Licensed, Bonded & Insured

KNB Exteriors
           

Exterior Cleaning & Remodeling                                                                           

ZERO PRESSURE....
THE ONLY WAY TO CLEAN YOUR ROOF

Does your roof have black streaks and look aged? You may think it needs to be replaced. Maybe not. Your roof is one of the most important elements of your home. It is also the most sensitive. Safely and properly cleaning a roof is a specialized skill that requires the utmost attention to detail. From the proper chemicals to the protection of surrounding plants and vegetation, we have the knowledge and experience necessary to renew the look of your roof. The black streaks on you roof are composed of algae that feeds on the limestone in your shingles which decreases their overall life. Our no pressure application consists of a mix of sodium hypochlorite, water and soap. This mix is applied to the roof surface with no pressure and allowed the proper dwell time. Upon completion, our solution will remove these streaks and destroy the algae and give you the maximum life from your roof. 


Our service comes with a 3 Year Limited Warranty against the return of any black streaks. Contact us for a free quote!