Treat mildew with bleach.
Garage roof mold bleach.
For example roof cracks can be a cause of small puddles in your garage which if not properly dried out can become one of the mold causes.
Why not clean my roof with bleach.
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.
Mold stains can form on roof shingles that are in permanent shade.
What bleach does to your roof.
If you raise or lower the ph the organism will die allowing you to clean the stain from the roof easily.
But outdoor heavy duty cleaning usually calls for more heavy duty mixtures such as tsp and chlorine bleach see the tsp page for more details or specialty additives such as jomax from rustoleum which combines a cleaner with a.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
Living organisms on the roof can only survive at the current ph level.
You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
With that being said check the garage roof gutters pipes etc.
Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt.
Chlorine bleach kills mold and mildew and you can use a solution of 1 part household bleach and 4 parts water to clean any wall surface.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside not to worry though because you can clean the mold off with basic household bleach and save.
Space between the strips.
Vinegar bleach ammonia and salt will all effectively change the ph level of your roof allowing you to clean it.
But that would only make sense if the shingles were worn out.
3 secure the strip with roofing nails.
That nothing is leaking.
If you ve had experience with mold and mildew in the home you know the best mildew remover is chlorine bleach.
It is this very oil tar and asphalt which protect your shingles from the elements.
Frequently to ensure that they are in good condition i e.
Roof stains return in as few as 9 months and the roof mold is worse than before.