The Roof Cleaning Institute Of America Training & Certification Forum
"Find A Certified Roof Cleaner Directory"

Yea these are actually "Maxi Tiles". They are a fiberglass/organic tile made for houses that are not reinforced for heavier tiles. Thus making them very very light, and brittle. It depends on how old the tiles are. 7-8 years ago they started putting a glaze on them which would help with the cleaning, before that no glaze.

My suggestion is to go to his house with a 50/50 mix and spray a small section. If it has a glaze it will clean right up. If not, it will soak up the chemical like a sponge and will still be dirty. If the latter happens, keep spraying it (4-5 times) and it should clean up.

I did this roof below in Lake Charles LA, it was about 10k sqft of roof space and we used over 1000 gallons of mix. But it looked nice. We made money but not much. On the way back to Houston we got a call for another one of these roofs, we charged properly, told them how much mix we would use, and to expect plant damage. This was the testimonial I got.

"I would like to thank Confident Roof Cleaning for the outstanding job they did cleaning our roof. Scott and his crew were very efficient and professional. They are true masters at what they do and I would not trust my roof to any
other operation. In fact, my husband and I had tried in vain for over four years to find professionals to clean our roof. After several attempts by other roof cleaners, Confident Roof Cleaning was the only company that was able to
clean our roof successfully. I truly recommend them!"

Call me if you have any questions.

Confident Roof Cleaning Houston TX wrote:

---

Yea these are actually "Maxi Tiles". They are a fiberglass/organic tile made for houses that are not reinforced for heavier tiles. Thus making them very very light, and brittle. It depends on how old the tiles are. 7-8 years ago they started putting a glaze on them which would help with the cleaning, before that no glaze.

My suggestion is to go to his house with a 50/50 mix and spray a small section. If it has a glaze it will clean right up. If not, it will soak up the chemical like a sponge and will still be dirty. If the latter happens, keep spraying it (4-5 times) and it should clean up.

I did this roof below in Lake Charles LA, it was about 10k sqft of roof space and we used over 1000 gallons of mix. But it looked nice. We made money but not much. On the way back to Houston we got a call for another one of these roofs, we charged properly, told them how much mix we would use, and to expect plant damage. This was the testimonial I got.

"I would like to thank Confident Roof Cleaning for the outstanding job they did cleaning our roof. Scott and his crew were very efficient and professional. They are true masters at what they do and I would not trust my roof to any
other operation. In fact, my husband and I had tried in vain for over four years to find professionals to clean our roof. After several attempts by other roof cleaners, Confident Roof Cleaning was the only company that was able to
clean our roof successfully. I truly recommend them!"

Call me if you have any questions.

---

I remember well the first one of these you did Scott!