If your moss problem is extensive and you plan to use a large quantity of chlorine bleach bear in mind that it will accelerate the corrosion of your metal gutters and downspouts.
Will use bleach to kill moss hurt the roof.
Once the moss is soaked it should begin working in as little as four hours.
To really get all moss and stains off your roof use a stiff bristled scrub brush.
The bleach will kill the algae or moss but rinsing won t necessarily leave the roof sparkling clean.
Use the watering can to drench the moss with the bleach water solution.
Bleach will also kill it.
What you don t hear about though is the damage that bleach can do and the long term effects of using bleach to remove moss from your roof.
Algae will disappear and wash away with subsequent rains the association advises.
Start at the top and work your way down.
Keeping roof shingles clean will not only enhance the overall look of your home but can also protect the shingles from damage caused by moss and mildew.
If you decide to use a bleach solution or other readymade roof moss treatment protect nearby plants with plastic sheeting.
At keeping it clean we ve seen just about everything when it comes to roofs and moss removal and we can tell you upfront that using bleach on your roof is rarely a good idea.
You will notice the moss turning a yellow color.
Apply a storebought or diy cleaning solution to remove the moss.
July 18 2010 updated.
Do this at the end of the cleaning solution s time frame just before you rinse the roof with water.
The dead moss.
Because vinegar is like acid rain which can damage any green living thing.
Moss roots are thin and loosen from your roof through contact with the bleach.
Chemical solutions can adversely affect the environment as well as damage foundation plantings growing beneath roof overhangs.
Algae mold mildew moss and dirt are often attracted to shingles.
Chlorine bleach will kill roof moss but when you rinse if off the roof it may kill the plants growing alongside your house too.
I have some roof shingle mold mildew and was going to try jay j s suggestion of 1 cup bleach to 1 gallon water but was concerned that the bleach would damage the asphalt aspect of the shingles.
The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
Use vinegar or bleach to kill moss on roof.
Bleach can effectively clean roof shingles and remove even the toughest stains.