Having a build up of moss on your roof can damage or even crack the tiles, during the winter months moss will freeze and expand causing the tile to break, and during the rainy months of the year it holds water which can make tiles brittle and rotten. Cleaning the moss off your roof and using a biocide treatment can dramatically increase the life of your roof, saving you thousands in repair bills.
We use non aggressive cleaning methods on roofs that have moss, algae and lichen problems. We manually scrape the roof and apply a Biocidal treatment to kill all remaining spores and clean your roof. This gives a cleaning effect for up to a year which results in a cleaner roof for much longer In some cases we clean with our steam cleaning equipment. Roofing manufacturers such as Tegral and Marley do not advise powerwashing which can cause damage to your roof. It also just spreads the spores and regrowth will be seen within the year.