Cleaning Moss Off Roof Tiles: What You Need to Know

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Moss can cause significant damage to your roof tiles over time. It retains moisture, which can lead to cracked tiles, freeze-thaw damage in winter, and eventual leaks. Moss also adds weight and traps debris, accelerating wear. If left untreated, moss can spread quickly across your entire roof, blocking drainage systems and increasing the risk of internal damp.

Removing moss isn’t just a cosmetic choice—it’s an essential part of roof maintenance. Moss absorbs water like a sponge and keeps your roof permanently damp, which creates ideal conditions for decay. Over time, this can impact your insulation and cause higher heating bills.

The best approach is a gentle manual removal using a scraper, followed by an eco-friendly biocide treatment that prevents regrowth. We always recommend avoiding harsh methods like jet washing, which can damage tiles, underlay, and pointing. Instead, a safe scrape-and-treat method is preferred by professionals to protect the integrity of your roof.

In addition to preventing damage, moss removal boosts kerb appeal and increases property value, especially if you are planning to sell your home. Clean roofs help your house look well-maintained and reassure buyers about its condition.

If you're based in Crawley, Horsham, Worthing, Eastbourne, Hastings, Brighton, or Chichester, Skyhawk Flat Roofing can help you clean your roof safely and efficiently using proven, low-risk methods.

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