How To Pressure Wash Metal Roof

Opt for something soft to protect your roof s paint and parts.

How to pressure wash metal roof. Use a rag to apply to affected spots and use circular wiping motions. 5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar. However keep the concentration of the detergent at its minimum. There is a chance that the pressurized water could damage your shingles.

This is very effective at getting rid of algae and mildew both of which often grow on metal roofs. Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home. Start off with a hot water pressure with a 40 degree tip. However if you hire a seasoned company like fiddler roof cleaning you will have access to environmentally friendly cleaners such as eco roof.

Remove the particles or pieces that are causing the rust stains. Cleaning la s totally awesome vs. Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean. For years many companies in the roofing industry have advised using a mixture of cup of tri sodium phosphate per one gallon of water.

Pressure washing is very effective but may be best for metal or concrete roofs. Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water. To remove severe rust stains. For every part water combine 0 05 part mild dish or laundry detergent.

Use a cloth or sponge to clean. As you spray keep the distance of the pressure washer nozzle uniform across the roof. We recommend hot water because metal roofs can handle it and hot water is more effective. Pine sap decaying leaves and even road dirt that s drifted into the air can settle on your metal roof and stain it.

You only need low pressure on metal roofs as it is enough to disturb and clean them. For any areas that don t wash away with pressurized water fill a bucket or other container with water.