For starters we never recommend.
Can you pressure wash a tin roof.
There is a chance that the pressurized water could damage your shingles.
Start off with a hot water pressure with a 40 degree tip.
This is very effective at getting rid of algae and mildew both of which often grow on metal roofs.
We recommend hot water because metal roofs can handle it and hot water is more effective.
You only need low pressure on metal roofs as it is enough to disturb and clean them.
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.
Therefore it s usually best to clean a metal roof from on top of the house itself.
Homeowners need only a water hose with enough pressure to reach all areas of the roof properly and a method of dispersing detergent and soap to the roof usually by attaching a soap receptacle on the water hose line.
Even on the exterior of your home or in your yard fixtures housing electricity should not be pressure washed.
Metal roofs are relatively easy to clean with patience.
There are several means available for cleaning the metal roofing like pressure washers and wire brushes.
Cleaning becomes all the more important for the houses with metal roofing that lies in an area susceptible to mold and mildew.
Before you can clean your metal roof you ll need to do a thorough inspection of the roof itself.
Pressure washing is very effective but may be best for metal or concrete roofs.
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.
Avoid making these top 10 electrical mistakes by diyers.
The roof can be the dirtiest part of your rv and the area where you can be most tempted to blast away with that pressure washer.
Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home.
Most important though is to take some safety precautions before attempting to clean to reduce the chance of injury.
You might expect that using such a powerful cleaning agent would entail a complicated procedure but once diluted tsp can be applied simply with a brush or sponge or via a sprayer.
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.