Cleaning Stains Off Roof Shingles

Too much pressure isn t good for an ideal roof cleaning.

Cleaning stains off roof shingles.

To learn how to prevent moss and algae from getting on your shingles keep reading. While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles. Chances are the granules will get loosened up making those thin and brittle. Do it yourself and save big bucks.

It is not uncommon for roof shingles to turn black over time. Algae stains can be removed by cleaning though they usually return. The worst part is old or already loosen up shingles can blow off from the roof with too much pressure. So it pays to clean your shingles as soon as you spot algae growth.

After 15 to 20 minutes rinse the solution off with a sprayer that has enough force to dislodge algae and moss without damaging the shingles. Generally the more shingles you want to clean the more cleaning agent you ll need. This will remove any stains that were loosed up by the oxygen bleach. The amount of cleaning agent you ll need to use depends on the number and size of the asphalt shingles you wish to clean.

You can identify asphalt shingles that need to be cleaned by looking for black green or blue stains. While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles. Tim asks how can i clean the black stains off my roof and keep them from coming back your stains are probably caused by the airborne spores of a blue green algae. Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.

While doing little harm to your shingles the black streaks caused by the algae are unsightly. Read on to find out how to remove them. When that happens it is generally caused by mildew algae mold or dirt stains. There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.

Set the garden hose on the spray setting with the highest pressure water and hold the nozzle close to the shingles when rinsing. Allow the oxy bleach mixture to sit on the shingles for about 15 minutes. Use a garden hose to rinse the stains and cleaning solution from the roof.