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.
Garage roof mold bleach.
7 protect nearby shrubs and lawn with plastic tarps.
In a two gallon bucket create a cleanser composed of 1 4 chlorine bleach and 3 4 water.
Roof stains return in as few as 9 months and the roof mold is worse than before.
8 spray the cleaning solution onto the shingles using a garden sprayer.
The bleach get those black stains off and your roof looks brand new again.
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.
Moss and algae breakdown these protective layers shortening the lifespan of your roof.
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.
Then add one tablespoon of trisodium phosphate tsp and mix well.
Never mix chemicals together.
Spray the roof with the diluted substance and let it sit for about an hour.
Thoroughly water any plants near the area where you will be working.
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.
I bleach my roof every 2 years.
Add cup clorox regular bleach 2 with cloromax to 1 gallon water in the 5 gallon bucket.
Protect larger plants by covering them with plastic sheeting.
Vinegar bleach ammonia and salt will all effectively change the ph level of your roof allowing you to clean it.
With that being said check the garage roof gutters pipes etc.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
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.
It is this very oil tar and asphalt which protect your shingles from the elements.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
Use only one of these substances mixed with water at a time.
Frequently to ensure that they are in good condition i e.
For larger jobs use 1 cups bleach added to 2 gallons of water.
I also just use a water hose to rinse it off.
Which is exactly why you want to remove moss in.
I let the bleach sit for like 10 minutes.
Space between the strips.
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.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
What bleach does to your roof.
That nothing is leaking.
Wind sunlight water etc.
