How Do You Remove Roof Stains

After mixing spread the solution on the shingles with a spray pump or soft scrub brush.

How do you remove roof stains.

You may apply gentle pressure to the stained areas but do not scrub quickly or with any force. Allow the bleach to remain on for 15 to 20 minutes then rinse it off with a hose. Allow the oxygen bleach to sit on the shingles for 20 minutes. Rinse from the top of the roof down to avoid re staining the shingles with the dirty water.

Wait several days and wash off the roof from the bottom up using a garden hose with a standard spray nozzle. If you decide to try it apply it shortly after you ve cleaned the roof. 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.

Rachel frampton march 4 2020 at 11 52 pm. I ll make sure to use a mixture of trisodium phosphate bleach and water to. 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. After that you will need to clean the roof with trisodium phosphate or tsp.

Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles. Thank you for this. Take care to avoid spraying water under the shingles and avoid walking on the roof if at all possible. 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.

If stains on the roof are hard to remove homeowners and industrial commercial builders should hire a professional roofer to clean the roofs. Rinse the roof with water and allow it to dry fully. If your roof has algae or mold you ll need to add a little bleach to the tsp in order to remove it. Step 5 let solution soak in.