Your roof is an essential component of your home and keeping it in good condition is crucial. Unfortunately, various factors, such as lichen, can affect the health of your roofing. Lichen is a common issue many homeowners face, and it can be quite unsightly. This guide provides an in-depth look at what lichen is and ways to prevent its growth. 

What Is Roof Lichen? 

Lichen is a composite organism that consists of a fungus and an alga. When these two organisms come together, they form a mutually beneficial relationship. The fungus provides a protective environment and nutrients for the algae, while the algae produce food through photosynthesis. Lichen comes in various colors, including green, yellow, gray, and black. It often grows on rocks, trees, and even rooftops. 

What Causes It to Grow? 

Roof lichen grows in damp and shady areas. It thrives in areas with high humidity and can grow on various roofing materials, including asphalt shingles, tiles, and wood. Lichen spores are often carried by the wind and deposited on the roof. Once the spores land on the surface, they start to grow, forming unsightly patches. 

How Lichen Affects Roofing 

Lichen can cause damage to the roofing material. As it grows, it can penetrate the surface of the roof, causing cracks and other damage. It can also hold moisture against the roof, which can lead to rot and decay. Additionally, lichen can make the roof look unsightly, reducing the curb appeal of the house. 

How to Prevent Growth 

A good way to prevent lichen growth on the roof is by having it professionally cleaned. This involves removing dirt, debris, and other organic matter from the surface of the roof. Cleaning the roof regularly can prevent lichen from growing, as it removes the nutrients that lichen needs to thrive. 

Once your roof is clean and lichen growth is removed, you should have a professional apply a protectant. A roof protectant is a chemical solution that is applied to the roof to prevent the growth of lichen and other organisms. It forms a protective barrier that prevents the spores from landing on the roof, thereby preventing growth. 

If you want to protect your roof from lichen, turn to Roof Maxx Hawaii. This company serves clients throughout Mililani, HI, and provides effective treatments to rejuvenate roofing. Their solutions are 100% bio-based and can prolong your roof’s lifespan. To book a free inspection, call them at (808) 522-7663 or visit their website to learn more about their services.