 Is Moss On Roof Harmful ? The short and simple answer here is yes, roof moss can be a serious and costly problem and here are just a handful of reasons why: Moss growing on your roof can and will over time cause severe damage both internally and externally to your home and once it takes hold, it holds on tightly and accumulates quickly, it takes hold on a roof by extending rhizoids, which are strong root-like tendrils that keep it from blowing off or washing away in the rain. External damage includes tile damage as the moss gradulally lifts the tiles creating cracks and crevices that allow moisture to get underneath them. This can ultimately cause roof leaks and rotting of the wood underneath. Moss also eats away at the tiles surface which again results in weak, porous and cracked tiles, it can grow in and around your roof tiles and actually starts to acts as a ‘filler’, packing out any gaps and plugging the spaces, thus meaning your roof will no longer be water tight. It will damage your guttering as the moss will be falling off of the roof and into the gutters, weighing them down, which in time will cause them to snap or crack and will also block them meaning water won’t have the escape route it needs to be leaving your roof so will sit against the roof tiles and lead to damp within the home. Moss also grows in blankets and absorbs large amounts of water like a sponge, resulting in your roof tiles constantly being wet, this again will cause damp within the home. Moss will grow in areas that are particularly moist, dark and cool. If you come across a patch of moss that has turned brown or black, Don’t ever be fooled into thinking that the moss is dead if you were to add a little water you might be surprised. Many times the plant will turn green and begin thriving again once moisture is reintroduced! Trying to deal with a roof moss problem on your own can be fruitless and even dangerous—mossy roofs are slippery roofs! Call Bright Roof today and one of our team can visit your property and advise the best method to tackle your moss covered roof.
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