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Roof Cleaning Services

A lot of rain means a lot of moisture and moisture spells trouble for residential roofs. You may spot moss on your roof occasionally, and despite the fairy-tale appearance, that moss can cause a lot of damage to the home.

Ever seen black streaks on a residential rooftop in the area? While the marks look like mold or mildew, they’re algae. The algae are dark because they use pigment to protect themselves from the sun’s harmful ultraviolet rays. By the time homeowners notice the algae, it’s likely been there for months already.

Don’t despair, just because there’s moss or algae on the roof doesn’t mean there’s extensive damage.

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Roof Moss Removal & Prevention

Best Moss-Resistant Roof Types

In the Pacific Northwest, homeowners cannot avoid moisture. However, they can undoubtedly install or replace a roof with a material that’ll help prevent moss growth.

Metal Roofs
The best roof for avoiding moss and algae growth is a metal roof. Metal roofs are one of the most expensive options for Vancouver, WA homes, but they have plenty of advantages over asphalt and wood shingle roofs. For example, metal roofs don’t allow for much (if any) moss growth because of its slick surface and lack of suitable substrate. Additionally, metal roofs shed water quickly, which prevents moisture accumulation. Metal roofs also help lower utility bills by keeping the home cool in the summer.

Zinc-Treated Composition Roofs
Zinc is also toxic to moss and algae and cheaper than copper. Zinc-treated composition shingles can help prevent moss and algae growth. Roofing companies can apply a water-based treatment to the roof to kill any existing moss. Over a few weeks, the moss will turn yellow, then brown, then black. The treatment soaks into the roof’s shingles to prevent any new growth.

Copper-Treated Cedar Shake Roofs
As mentioned before, copper is toxic to moss. Cedar shake roofs are a popular roofing material here in Vancouver, WA. However, wood is susceptible to moisture damage. Not only does a copper-based treatment control moss and algae growth, but it reduces warping and splitting caused by the rapid changes in moisture we experience here in the Pacific Northwest. Additionally, copper-based treatments double as a pesticide, which prevents damage from pests like termites or powderpost beetles.

How Can Dr. Roof Help?

The professional roofers at Dr. Roof, Inc. have decades of combined contracting experience in roof moss removal and prevention. We have thousands of satisfied customer references, and we are committed to providing the best roof cleaning services in Washington & Oregon. If mold, moss, or algae have taken root on the family home’s roof, contact Dr. Roof today for a free estimate and answers to all of your roofing questions. We offer lifetime labor and material warranties, and we only use high-quality materials. Additionally, our warranties are transferable in case of relocation. Call today!

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