Asphalt shingles look great and can be fairly durable and cost effective to install, however, they attract algae and moss very easily. Moss can quickly grow in the shaded areas of the roof, then spread rapidly. We recommend a Softwash treatment every 3-5 years to keep the growth from hurting the shingle.

Like with asphalt shingles, tiles also can get covered in algae and moss, and discolor very easily. If the amount of growths on your roof gets too severe, it can even cause moisture buildup and prematurely break down the tile. When this happens it could leave you with a leak, or a roof that needs replaced ahead of schedule.

Metal sheeting on a roof might not be everyone’s first choice in the PNW, yet we often see these roof systems get covered in debris and algae quite quickly! Although we don’t see moss growth on this type of roof, we do see algae growth. Algae, if left untreated, will erode the paint that is coating your metal roof. This inevitably causes rust on the sheeting that will lead to huge problems down the road. It is a great idea to have your roof inspected periodically to ensure that algae is not growing on your metal roof!