Your residential roofing system protects your home from harsh weather. Its responsibility to safeguard your valuables, however, can come with a cost – its surface may react to various elements that come in contact with it, resulting in stains. Discoloration of your roof’s protective covering may be caused by a variety of things.
Royal Roofing Construction, your trusted local roofer, takes a look at the different types of roof stains and the meaning behind them.
Black Stains
Dark-colored or black stains can mean multiple things. When seen on asphalt shingles, these stains may be caused by external bleeding, which is a form of defect often mistaken as algae or other stain types. Black stains on chimneys, on the other hand, may be caused by soot. For the rest of the roofing components, black stains may be due to debris left on the roof surface, including fallen leaves and other organic wastes.
Green Stains
This type often indicates biological growth, particularly moss and algae, due to constant exposure to moisture and sunlight. While they don’t usually pose a threat to your roof’s health, they become a problem in terms of dragging down your home’s curb appeal. Professional roofers like Royal Roofing Construction recommend low-pressure washing using oxygen bleach or a trisodium phosphate solution to remove these unwanted plant organisms.
Red or Brown Stains
The most common type of stain, is the result of accumulated rust on the roof, especially around areas with metal components. Metal flashing or gutters, for instance, could have gathered significant amounts of rust over time, causing the surrounding shingles to obtain red stains. This can be easily solved by replacing the components and the affected roofing material.
Keep your roof in tiptop shape in both looks and function with the help of the experts from Royal Roofing Construction. We are the leading provider of premium roofing systems, roof coatings, gutters, and other exterior services in the region. To schedule a free consultation, give us a call at (714) 680-0015 or complete our form. We serve homeowners in Santa Ana, CA, and the surrounding California communities.
