Trisodium Phosphate To Clean Roof

Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.

Trisodium phosphate to clean roof.

Stir the solution with the spray tip as you add water and leave it to settle for 5 to 10 minutes. 75 trisodium phosphate and bleach into the mixing tank a for 1500 2000 square roof affected by algae. Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach. To clean the roof mix 1 2 cup of trisodium phosphate in 1 gallon of water.

Tsp in a roof cleaning solution has many benefits and should never be skipped here are just a few. Pour a ratio of 50. Slate is a highly durable yet delicate roofing material. Add this to a pressure washer and wash the roof starting from the highest point and working downward.

Diluted in water and applied often with a stiff scrub brush it can remove. Roof stains return in as few as 9 months and the roof mold is worse than before. It wasn t so long ago that trisodium phosphate tsp was a go to choice for tough cleaning jobs especially on exteriors. Thickens the solution allowing much more dwell time on the roof surface allowing for the use of weaker bleach ratio s.

After the roof is dry prime and repaint the spots where you scrubbed off paint and rust. Roof cleaning using chemicals like chlorine bleach and tsp trisodium phosphate as a cheap roof cleaning spray to make your shingles look new again is not advisable.