Re roof an expensive option.
Roof stains away.
Extractive bleeding stains on asphalt roofs see extractive bleeding on shingles and see roofing material defect.
Your roof likely has more useful life.
Algae can be killed and the stains removed using chemical cleaners though they usually return over time.
Apply roof be clean just spray it on after proper dilution as directed with an.
1 gallon of hot water 1 full cup of chlorine bleach 1 cup of powdered laundry soap.
Step 3 mix cleaning solution there are a few ways you can mix bleach but the most common is to take one part chlorine bleach three parts water and a sprinkle of liquid laundry detergent or tsp.
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.
Here s the recipe for creating the perfect bleach solution.
Power wash or brush clean damages the roof shingles by breaking away the granules that protect color the roof.
Green roof stains on roof shingles clay tiles cement tiles and asbestos cement roof shingles or newer fiber cement.
Lichens growing on building surfaces lichens are not the.