How Do You Remove Roof Stains

I ll make sure to use a mixture of trisodium phosphate bleach and water to.

How do you remove roof stains.

If your roof has algae or mold you ll need to add a little bleach to the tsp in order to remove it. If fast removable of stains is a necessity apply roof be clean as directed. Take care to avoid spraying water under the shingles and avoid walking on the roof if at all possible. Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles.

Allow the oxygen bleach to sit on the shingles for 20 minutes. Thank you for this. Use a cleaner specially made for killing algae or by spraying a mixture of one part bleach to four parts water with tsp trisodium phosphate or other detergent added in a garden pump up sprayer. The second method is to spray on a coating of stain blocking solution defy stain blocker for roofs is one product but there are other brands as well a stain blocking product can buy you up to three years of protection from algae.

If you do granules will come off the shingle and affect your roof s waterproofing. There are a ton of leaves dust and algae on my roof. This is an acid wash that will leave the roof completely clean. If stains on the roof are hard to remove homeowners and industrial commercial builders should hire a professional roofer to clean the roofs.

After mixing spread the solution on the shingles with a spray pump or soft scrub brush. Rinse the roof with water and allow it to dry fully. Wait several days and wash off the roof from the bottom up using a garden hose with a standard spray nozzle. Step 5 let solution soak in.

Allow the bleach to remain on for 15 to 20 minutes then rinse it off with a hose. Rachel frampton march 4 2020 at 11 52 pm. If you decide to try it apply it shortly after you ve cleaned the roof. Rinse from the top of the roof down to avoid re staining the shingles with the dirty water.