Moss and algae are common issues on roofs in damp and shaded areas especially in parts of New Zealand with high rainfall. While they might look like a cosmetic problem, they can actually hold moisture against the roof’s surface, leading to rot, decay, and even leaks. Moss can also lift and loosen roofing materials, allowing water to seep underneath and cause damage.
You can usually spot moss as thick, green clumps and algae as dark streaks or patches across the roof. These often start small but spread quickly if left untreated. To prevent moss and algae growth, it's important to trim overhanging branches to allow more sunlight onto your roof and improve airflow. Keeping gutters clean also helps water drain properly, reducing the damp conditions where moss thrives.
If moss is already present, avoid harsh scraping or pressure washing, as these can damage your roofing surface. Instead, use a gentle moss removal solution or call a roofing professional to safely treat and clean the affected areas. Preventative treatments can also be applied to stop future growth.
Moss and algae might not seem urgent, but they can seriously affect your roof over time. Regular maintenance and early treatment go a long way in protecting your home. Ayat Roofing is your trusted partner for roof repairs, roof replacements, and more. Whether you’re dealing with roof leaks or need a new roof, our expert team is ready to provide fast, reliable, and affordable service.
