In this guide, I will be giving you some tips and tricks if you are a novice when it comes to cleaning of your roof. A lot of Homeowners actually have found quite a bit of luck when it comes to applying detergent or even using a low-pressure wash. It would help if you used a low-pressure wash, because it does not have the destructive capabilities of a high-pressure wash. A lot of washers operate at 1500 to 3000 PSI so that they can effectively wash the shingles and the tiles. Some of them will actually end up removing or making the protective layer very dull, and it also makes it lose its glaze. Try and use a washer that operates at a power that is not more than 30 PSI. A simple low power washer will actually have enough power to wash away all of the unwanted items and dirt on your roof, without causing any of the damage or any deteriorated looks.