Hi Al, As chris says generally moss is not a problem, but if the tiles are interlocking the moss can grow and build up on the interlocking channels causing problems such as capillary reaction and water discharge over the top of the interlocking channels. Kind regards Paul Davis Total roofing care.
Hi trouble is its likely to return It's not good for clay tiles and can hold in frost thus blowing the face off the tiles Get it removed
You could get copper flashing fitted high as possible to prevent return Get a local rated roofer in
Moss is an aesthetic problem only, it will die in summer and blow away, it may block the gutters as a result , otherwise no problem
Nick shares his story of finding local tradespeople in his new area.
