Removing the moss from your roof will make your house look clean and smart! But that’s not the only reason you should get your roof demossed. Moss is essentially a plant, its roots will grow into your roof tiles and any cracks in the mortar, loosening it as it does so. In addition to that, moss will hold a lot of water and add an astonishing amount of weight to your roof. Moss and biofilm removal leaves a smart finish, but ultimately prolongs the life of your roof.