In most cases all you need is pressurized water but sometimes you may need a chemical cleaner for especially tough spots.
Will leaves stain a metal roof.
Our photo below shows brown stains below a metal roof chimney.
Metal roofs are relatively easy to clean with patience.
Your best bet in the long run is to use shingles that are made not to stain when you replace your existing roof.
Most important though is to take some safety precautions before attempting to clean to reduce the chance of injury.
I sometimes recommend a re coating to clients whose roof is still structurally sound but.
Good luck with your project.
Water based paints offer faster drying and fewer fumes.
Cleaning your metal roof tip 7.
Bleach may kill the top layer of algae and lighten the stains but it doesn t kill the underlying.
At first you might think the roof has a problem or has begun to prematurely corrode but often times this is not the case.
Leaf stains are a common problem encountered by any homeowners with outdoor patios boats and cars.
Some metal cleaners are slightly corrosive so using the wrong concentration could be damaging to the metal.
Plus chlorine bleach is a corrosive agent that can damage metal roof flashings gutters and downspouts.
If painting light to moderately used indoor metal surfaces think wall sconces bed frames or guest room night tables go with water.
While it didn t look like new it was a lot better.
Tree leaves contain oils passed on from the tree and each species leaves its own distinct type.
But here s the kicker.
And the runoff harms plants.
Re coating your metal roof can be a cost effective way to improve the appearance of the roof without replacing it.
See details at debris staining on roofs.
It can lighten the color of your roof and bleach anything the overspray contacts.
Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water.
Also note the lack of stains below the metal flashing which is basically the same as the zinc or copper preventative.
Pine sap decaying leaves and even road dirt that s drifted into the air can settle on your metal roof and stain it.