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.

Remove black stains on roof.

These tips are. These roof invaders require a moisture rich environment usually supplied by dew and shade. While doing little harm to your shingles the black streaks caused by the algae are unsightly. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma.

The algae feed on the limestone in shingles. We used a roof cleaning service called roof shampoo. As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. Luckily there are a few ways to successfully clean dark stains on wood.

Chlorine bleach and trisodium phosphate step 1 wet down the roof with water from the garden hose. 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. While removing water stains is one thing getting rid of dark black stains is a little harder. These stains are soaked into the wood and need some special tricks to get them out.

Read on to find out how to remove them. But over time black stains develop as some of the bacteria die off to create a dark tough protective outer coating. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. Sam may 6 2012 at 9 08 am.

It was like getting a new roof. The wrong way to remove black streaks from your roof. Gravity pulls this coating down leaving black streaks on the impacted roof. And they used a very low pressure.

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. Remove black stains from roof shingles to preserve the appearance of your home s roof. The products are all eco friendly and don t contain bleach so we didn t have to worry about killing our flowers or bushes. 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.

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.