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Slate Roof Cleaning

Slate is one of the oldest roofing materials because it is long lasting and durable. Unlike asphalt shingles, slate roofs take a very long time to weather and begin breaking down; however, slate tiles do age over the years, and the older the tiles are, the more fragile individual tiles become. A tile roof will age more quickly if not properly cared for by removing moss and algae accumulation. A-1 Window Washers has used a soft wash process for slate roof cleaning and washing in Mandeville for over two decades. This process removes the accumulated unwanted matter on your slate roof while not harming the tiles.

No matter material used to finish the roof, every roof is susceptible to suffering from damage and unsightliness caused by organic growth. Slate roofs are most often impacted by moss, mildew, and algae. The presence of these organics prevent slates from fully drying after a rain. When moisture is permitted to remain against a slate tile, it will eventually work its way underneath the slate and begin to rot the wood sheathing beneath. The root system of moss can easily work its way beneath the slates and left and separate the tiles. To prevent organic growth on slate roof it is best to keep the roof free of debris and keep tree limbs trimmed so the roof can receive full sun.

It is important to use a professional for your slate roof cleaning and washing for your own safety and the protection of the roof itself. Most slate roofs are older, and the older the slate is, the more fragile it becomes. Always assume a slate roof is fragile and prone to damage. Fragile slate can be easily damaged by high pressure washing systems. These can not only damage the slate itself, but can force water underneath the slate and against the roof’s wood sheathing which can lead to rot and the growth of mildew and mold.

A-1 Window Washing’s soft wash process removes all surface contaminants and kills the root systems of organic matters. Using a water delivery system with little to no pressure combined with cleaning agents that are specially blended by our trained technicians to address the specific needs of your roof, results in a clean roof with no damage. Guaranteed.

If you live in Mandeville or the surrounding area and have a slate roof that needs to be washed or cleaned, please give us a call. We will be happy to discuss with you the specific needs of your slate roof and give you a free estimate to have it looking fresh and clean again.