Most folks probably don’t spend much time thinking about the cleanliness of their roof. If it’s not leaking then there’s not a problem, right? Wrong. There are a number of roof cleaning issues that if left unchecked, can wreak havoc on shingles, shakes, and tiles, eventually leading to deterioration of the roof structure itself. This article will discuss some of the signs of trouble, the causes, and some of the cleaning methods used to eliminate potential problems. Preventative measures are always less expensive than repair or replacement costs.

Debris Staining – Is a fairly common problem, especially on low pitched roofs with overhanging branches. Staining occurs when piles of debris, such as leaves or needles from coniferous trees collect on the roof. These piles retain water and can cause serious damage if

Black Streaking – When black stains occur on your roof in the form of streaks, it is most likely a case of ‘bleed through’. This occurs when the bituminous material in asphalt shingles begins to break down and bleed from the shingle. Unfortunately this is usually a sign of faulty materials, or older shingles in need of replacement. It can be hard to distinguish bleed-through from black algae, which is why I always recommend seeking the advice of a trusted roofing contractor before making any decisions on course of action.
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