This is a great question and often debated whether a roof should be cleaned or not. In our opinion, which may be obvious, yes you should have your roof cleaned. The reason to get your roof cleaned is to protect your home long term without the huge layout expense of a new roof. The main reason to get a roof cleaned is moss buildup. We hear all too often “the moss is what’s holding the roof together!”, this is simply not true. A buildup of moss is one of the leading causes of damp in a home along with damage to your roof. The moss acts as a wet carpet trapping moisture on the roof, ultimately in your loft leading to damp in the upper floors of your home. This moisture can also lead to rot in your roof rafters affecting their structural integrity. Along with this moss can retain up to 20 times its dry weight, now imagine a full bed on your roof, a roof when build not accounting for this extra weight leading to damage to your roof rafters. Another key point to note is that when the winter time comes the moss between the tiles will freeze and expand causing the tiles to crack and chip if they have nowhere to go.