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Why not clean my roof with bleach?

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.
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.
Chlorine bleach / TSP chemical combination can kill plants, and the phosphates hurt the environment.
Chlorine bleach also dries out a shingle roof causing curling, and ultimately shortening asphalt roof shingles life.
Bleach runoff may void your termite warranty Roof Cleaner QSE does NOT CONTAIN bleach or chlorine chemicals. 
Roof Cleaner QSE uses high alkaline / high ph cleaners and proprietary surfactants to provide the most effective roof stain removal.

10 times more gentle than bleach!
To compare bleach and Roof Cleaner QSE, you would have to clean a roof shingle 30 Times in a year to begin to approach the harm to your shingles caused by ONE spray application of chlorine bleach for roof cleaning.

  • Roof Cleaner QSE -- Professional roof mold cleaning chemical product for roof stain removal with rapid results
  • Roof Cleaner OX - organic mold roof cleaner -- Homeowner grade, ECO-friendly, Cleans with the power of Oxygen, with NO Sodium Hydroxide (lye), phosphates or Chlorine

Did you clean your roof with chlorine bleach?

If so, your shingle life could have been shortened because bleach can dry out and crack the roof shingles and fungus and roof mold will grow sooner.
It is interesting to note that some manufacturers recommend that roofs actually be cleaned with chlorine bleach or chlorine bleach and TSP (Tri-sodium Phosphate)
---of course, they are in the business of selling shingles, therefore, the quicker your roof succumbs, the quicker they will be able to sell you a new roof.

Roof Cleaning ... Routine roof maintenance

Roof Cleaning should be part of your annual maintenance plan. 
Why? Because roof algae stains are a reality of Home ownership and Clean roofs also protect property values.

How often you clean your roof depends on several things:

There are many uncontrollable variables that help hasten algae/fungus staining.
First, roof mold fungus will appear initially on the north side of the house and roof.
This is because moisture stays there longer and, algae/fungus needs three things to grow: moisture, heat and a nutrient.
Other variables beside the direction your house faces are the type, grade and manufacturer of your shingles, whether you have a water source (pond, ocean, lake or pool) nearby creating abundant moisture and how hot and humid the weather is. Continuous warm weather promotes fungus growth.

Also, if you have trees near your house and they shade the roof, that promotes quicker fungus growth. If you haven't cleaned the leaves and pine needles off, that keeps your roof ripe for fungus growth too.

These variables combine to create the need to clean your roof immediately!

Here's why:
As the algae and fungus grow on your roof,
they eat away the base of the shingle and expand and contract with the outside temperature.
This growth and movement loosens the granules, creating premature granule loss, dramatically shortening the life of your roof.

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Roof Cleaner OX for Shingle Cleaning Roof Mold Stain Prevention Roof mildew cleaner
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Roof Cleaner QSE 4500
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Roof Mold Cleaner OX
Spray on Shingle Mold then rinse
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Average Home Coverage (3000 roof ft)
Annual Roof Mold Prevention
Prevents Roof Mold & Algae Stains.
Apply with Hose End Sprayer
No Rinse required
Rapid Roof mildew Removal
Roof Stain Removal in 25 minutes
Large Home Coverage (4500 roof ft )
   
 
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