A 'carpet' of green moss growing on a roof can look very unsightly and can also lead to many other problems if left unchecked. Gutters and downpipes can become blocked and the extra weight of wet moss can cause stress on a roof structure. The build-up of organisms such as moss negatively affects the integrity of a roofing system.  Moss absorbs water and when it freezes causes tiles to crack and move them from their correct position allowing water to penetrate the first preventative barrier against rain. This can result in premature degradation of your roof and it can start to look unsightly. Our methods and professional equipment are safe, effective and provide extremely positive results on all types of roofs, including pitched, flat, tiled, felt, fiberglass and conservatory roofs