By Will Soutter
Composite roofing shingles are a sought after option for to sloping roofs. Being long-lasting and cost-effective, composite shingles function well during the wet Pacific Northwest winters. They come in an array of looks and textures.
The adverse fact is that moss and algae grow well on the wet Northwest roofs and leave ugly stains. Many ways of taking care of shingles to solve this problem have come up, but they would make shingles more expensive. However, Johnson Roofing & Gutters, roofing expert from Seattle, even now recommends using shingles but treated with algae protection to increase roof life.
Many of the algae protection constituents for composite roofing products exist in the form of magnesium or copper pellets that are added to the granules of the composite asphalt shingles. These metals hinder the growth and increase of algae.
- Latest improvements in algae protection technologies give us the following reasons and more for choosing algae-protected composite roofing shingles:
- Cost advantages over a long duration – composite shingles of today have been protected against weather and growths. The better options will be more expensive, but will have the advantage of lesser maintenance and cleaning.
- Low deterioration caused by cleaning – roof cleaning methods of high-pressure water sprays remove algae but also damage roofs. This can be avoided by fewer cleaning sessions.
- More options – latest developments offer a wide variety of colors, designs and textures of composite shingles.
- Less algae = less moss – moss growth on roofs is a nuisance in the wet Northwest climate. It leads to retention of moisture and premature deterioration and aging of roofs. This can be avoided with proper cleaning of organic material from roofs and using superior algae protection.