For many years, roof discoloration brought on by algae has actually been observed throughout the United States and Canada. The discoloration usually has a brown to black look, and might be mistaken for fungus growth, soot, dust, moss, or tree droppings.

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Gloeocapsa magma is probably one of the most common of several algae varieties that contribute to discoloration. All varieties are moved with the air, and have a tendency to gather and grow upon roof covering frameworks. Natural pigments generated by these algae may cause a white or light colored roof to progressively become dark brown or black. Discoloration might appear as uniform stains or streaks. The algae discolorations must not be confused with moss or tree droppings, which normally produce only localized discolorations.

This kind of roof discoloration has been most prevalent in the Gulf States, particularly Bonita Springs and along the Northwest and Eastern Seaboards. It is not, nevertheless, confined solely to these areas.

Algae growth occurs to varying degrees in all areas of the nation, particularly those subjected to warm, damp climates. It must be kept in mind that nearly all types of roof are vulnerable to algae discoloration. It is, certainly, most readily visible on light colored asphalt shingle roofs, while it is not so noticeable on darker shades of roof. Algae discolorations are tough to get rid of from roofing surfaces, but might be lightened by using a solution of regular household chlorine bleach (sodium hypochlorite) and water. Directions for blending recipes of these ingredients may differ among shingle producers and depend upon the amount of discoloration.

A normal solution must be one part chlorine bleach and one part water. Various other cleaning chemicals or methods must not be used without approval of the roof shingles producer. First, gently disperse this formula on the roof surface area. Please use normal precautions for dealing with bleach consisting of eye protection and rubber gloves. Please call us for how to clean roof shingles help.

Make sure to use it carefully to avoid damages to other parts of the building and the bordering landscape. Stay clear of scrubbing the surface, as this friction may loosen up and eliminate roof granules. When possible, always apply this solution from a ladder and/or scaffolding to avoid direct application to the roof surface area. Observe all recommended safety precautions when working on or near the roof. The formula should be left on the roof for at least 15 minutes however, for no greater than 20 mins.

Finally, wash the solution off the roof by carefully splashing the surface area with water. Be alerted that this solution application and rinse process will make the roof surface area unsafe and possibly hazardous to step on throughout treatment. The effectiveness of a cleaning method is only short-lived, and discoloration will likely reoccur.

Nevertheless, numerous kinds of algae resistant roof items have been developed and are currently commercially offered. These asphalt roof covering products are specifically designed to inhibit algae growth for extended periods.

Caution!


High pressure washing systems are likely to damage asphalt roof shingles and should not be used on asphalt roof for removing algae or for any type of various other roof purpose.

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