How Do You Remove Roof Stains

Rinse the roof with water and allow it to dry fully.

How do you remove roof stains.

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. Thank you for this. Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles. This is an acid wash that will leave the roof completely clean.

Rachel frampton march 4 2020 at 11 52 pm. 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 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. 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. Cleaning the stained area of the ceiling with a mild homemade bleach solvent one cup of bleach and three cups of warm water will fade the stain and remove any lingering mildew grease dirt or.

After that you will need to clean the roof with trisodium phosphate or tsp. 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. Allow the oxygen bleach to sit on the shingles for 20 minutes.

Step 5 let solution soak in. After mixing spread the solution on the shingles with a spray pump or soft scrub brush. You may apply gentle pressure to the stained areas but do not scrub quickly or with any force. If your roof has algae or mold you ll need to add a little bleach to the tsp in order to remove it.