Remove Black Stains On Roof

Chlorine bleach and trisodium phosphate step 1 wet down the roof with water from the garden hose.

Remove black stains on roof.

We used a roof cleaning service called roof shampoo. Gravity pulls this coating down leaving black streaks on the impacted roof. While removing water stains is one thing getting rid of dark black stains is a little harder. The first stains usually appear on the north facing sides of a roof which receives less light and in.

Luckily there are a few ways to successfully clean dark stains on wood. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. 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. Read on to find out how to remove them.

The products are all eco friendly and don t contain bleach so we didn t have to worry about killing our flowers or bushes. 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. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. 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.

As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. These roof invaders require a moisture rich environment usually supplied by dew and shade. 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. But over time black stains develop as some of the bacteria die off to create a dark tough protective outer coating.

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. It was like getting a new roof. The algae feed on the limestone in shingles. The wrong way to remove black streaks from your roof.

These stains are soaked into the wood and need some special tricks to get them out. Remove black stains from roof shingles to preserve the appearance of your home s roof. And they used a very low pressure. Thanks for all the helpful info on removing black roof stains.

If you d like to you could also lighten wood with a dark stain finish on it.