Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water.
Osphate cleaning concentrates for metal roofs.
Rinse the surface well with plain water.
Lightly scrub the surface until the area is free of mildew or mold.
It certainly will deliver on its promise which is to eradicate any signs of mossy growth or dark streaks.
1 3 cup of powdered laundry detergent 1 quart of bleach 5 solution 3 quarts of water.
Fortunately quality metal roofs also are one of the easiest types to clean and care for and labor day is an ideal time to consider preparing your roof for the coming season cleaning a metal roof regularly helps reduce damaging elements such as pollution airborne dirt organic material debris pollen and mildew.
It s unreal how well this stuff works.
Some spots got cleaned so well i could see shiny bare metal.
Dip a soft brush or rag in the cleanser and apply to affected areas.
Clean off the loose stuff use a pressure washer if you can paint this on and wait.
All in all if you are dealing with metal surfaces roof asphalt or even tough fabric materials as such then 6071 jomax roof cleaner can be one of the best options for you.
We use a 5 5 gallon system just for this reason.
I shared my discovery with a friend and he pointed me to the data sheets for this and klean strip s phosphoric prep and etch product.
Mixing tsp for roof cleaning when mixing the tsp with bleach for roof cleaning you will want to use a pressure washer with the black soft spray chemical injector tip.