Can You Pressure Wash A Metal Roof

Before you can clean your metal roof you ll need to do a thorough inspection of the roof itself.

Can you pressure wash a metal roof.

Of laundry strength liquid chlorine bleach and water. The water pressure will remove the granules that are important for protecting your roof. When you re ready to get started spray your roof using a garden hose with a spray nozzle attachment starting at the top of the roof and blasting downward so the dirty water runs off the sides. Once you squeeze the trigger the powerful recoil on the spray wand can throw you off balance and off of a ladder.

You only need low pressure on metal roofs as it is enough to disturb and clean them. However keep the concentration of the detergent at its minimum. This makes it easy for you to coat your metal roof with detergent while you are on the ladder. Keep in mind that metal roofs tend to be much more slippery than an asphalt roof and that many aluminum roofs will also dent easily if walked on.

Not to mention using a pressure washer from a high place is dangerous. We recommend hot water because metal roofs can handle it and hot water is more effective. Then get a 12 volt or gas powered detergent sprayer. There is a chance that the pressurized water could damage your shingles.

As you spray keep the distance of the pressure washer nozzle uniform across the roof. Pressure washing is very effective but may be best for metal or concrete roofs. Therefore it s usually best to clean a metal roof from on top of the house itself. Consumer reports experts share pressure washer cleaning advice for your deck roof siding car and more.

The power of pressure washers can be too much of a good thing. When you pressure wash use the minimum force possible to pry the fungus free and wash it from the roof. Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or. Use a pressure washer which can loosen shingles and seriously damage your roof.

You can also use a mild detergent solution in place of plain water if your roof is in particular need of a more intense wash. Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water. 1 attach a 35 degree spray wand to the pressure washer hose and fill the pressure washer. Never pressure wash your roof if you have asphalt shingles.

To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.