For larger jobs use 1 cups bleach added to 2 gallons of water.
Garage roof mold bleach.
Thoroughly water any plants near the area where you will be working.
In a two gallon bucket create a cleanser composed of 1 4 chlorine bleach and 3 4 water.
Vinegar will penetrate porous materials and kill the mold at the roots.
Put on rubber gloves and a breathing mask before proceeding so you can protect your skin and your lungs from the fumes produced by both bleach and trisodium phosphate.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
Protect larger plants by covering them with plastic sheeting.
This is because bleach only kills mold spores on the surface of affected materials.
Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt.
The bleach get those black stains off and your roof looks brand new again.
8 spray the cleaning solution onto the shingles using a garden sprayer.
Frequently to ensure that they are in good condition i e.
That nothing is leaking.
I bleach my roof every 2 years.
Which is exactly why you want to remove moss in.
Bleach and vinegar can both kill mold but vinegar is much more effective for removing mold from porous materials.
If you use bleach to remove mold growth there is a good chance that the mold will return.
Soaking the mildewed areas with a bleach solution and wiping off the discoloration is a short term remedy but if the mildew returns quickly or you notice black mold developing the best course of.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
It is this very oil tar and asphalt which protect your shingles from the elements.
What bleach does to your roof.
Then add one tablespoon of trisodium phosphate tsp and mix well.
Wind sunlight water etc.
7 protect nearby shrubs and lawn with plastic tarps.
I also just use a water hose to rinse it off.
Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.
Roof stains return in as few as 9 months and the roof mold is worse than before.
Add cup clorox regular bleach 2 with cloromax to 1 gallon water in the 5 gallon bucket.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
With that being said check the garage roof gutters pipes etc.
Space between the strips.
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.
Vinegar bleach ammonia and salt will all effectively change the ph level of your roof allowing you to clean it.
Spray the roof with the diluted substance and let it sit for about an hour.
Use only one of these substances mixed with water at a time.
Roof cleaning using chemicals like chlorine bleach and tsp trisodium phosphate as a cheap roof cleaning spray to make your shingles look new again is not advisable.
