Should You Power Wash Your Roof

A careful power washing cleans most gutters and the downspout.

Should you power wash your roof.

Pressure washing strips the granules from asphalt shingles. Avoid pressure washing your roof some companies offer to pressure wash your roof promising to make it look new. This is the best way to clean a roof if you have asphalt shingles. This prevents the growth of mold under the roof eaves and on the walls of the building.

Tempting as it might be to blast away unsightly moss and algae using a pressure washer to clean your roof is dangerous not to mention potentially damaging. Use a pressure washer which can loosen shingles and seriously damage your roof. But pressure washing your asphalt roof will do more harm than good. You don t want high winds blowing leaves and debris right back on to your roof and undoing all of the work you ve just had done.

Yes it will make it look sparkling clean but also you ll end up replacing the roof system sooner rather than later. With that being said here are the four times you should clean your roof. A thorough roof pressure washing should be done by a professional company. Power washing the tiles will remove fines in the concrete which will affect the lifespan of the tiles.

Rain gutters are part of the roof system and need to be washed when they are full of dirt leaves and other debris. Pressure washing is very effective but may be best for metal or concrete roofs. The damage caused by pressure washing is not immediately noticeable. There is a chance that the pressurized water could damage your shingles.

Unfortunately pressure washing may cause a lot of damage particularly to roofs like asphalt or tile where components can easily be pushed out of place by the strong spray. The best time to have your roof low pressure washed is when the weather is mild and sunny. Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home. Advice from nfrc national federation of roofing contractors.

Though they can withstand a rainstorm pressure washing can force water into cracks and crevices and cause damage resulting in a need for costly repairs. Even on the exterior of your home or in your yard fixtures housing electricity should not be pressure washed. As a manufacturer of concrete roof tiles we would not advocate power washing or recoating tiles as this would invalidate any guarantee. For starters we never recommend.