Remove Black Stains On Roof

These tips are.

Remove black stains on roof.

It is important that the roof be wet when the cleaning mixture is applied or it may evaporate before it has a chance to work. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. Chlorine bleach and trisodium phosphate step 1 wet down the roof with water from the garden hose. Unlike black algae stains which come off immediately with the rinse phase of the cleaning dead lichen and moss will require a few heavy rains to finish rinsing off the roof.

Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. Remove black stains from roof shingles to preserve the appearance of your home s roof. It was like getting a new roof. As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see.

Read on to find out how to remove them. We used a roof cleaning service called roof shampoo. Luckily there are a few ways to successfully clean dark stains on wood. These roof invaders require a moisture rich environment usually supplied by dew and shade.

Sam may 6 2012 at 9 08 am. While doing little harm to your shingles the black streaks caused by the algae are unsightly. The products are all eco friendly and don t contain bleach so we didn t have to worry about killing our flowers or bushes. Thanks for all the helpful info on removing black roof stains.

The wrong way to remove black streaks from your roof. The first stains usually appear on the north facing sides of a roof which receives less light and in. And they used a very low pressure. But over time black stains develop as some of the bacteria die off to create a dark tough protective outer coating.

It could take awhile but rest assured that lichen and most moss situations once dead will eventually dislodge and rinse off the roof thanks to mother nature. While removing water stains is one thing getting rid of dark black stains is a little harder. Gravity pulls this coating down leaving black streaks on the impacted roof. The streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles.

The algae feed on the limestone in shingles.