InspectionNews - Home Inspection - View Single Post

Eric Van De Ven · #10 (**permalink**) 09-01-2007, 05:52 AM

Quote:

Originally Posted by Rick Hurst

I've seen people clean the staining off the roofing material with the cleaner made for decks.

Its the same thing I think they use on older fencing to remove the gray before the fencing is stained with color.

It does smell like it has a high concentration of bleach in the material.

Rick

There is actually a product at home depot just for cleaning roofs. It does not contain bleach. I have used it and it was applied just as Jerry said.

Spray & Forget, No Rinse, Roof and Siding Cleaner - Removes Green & Black Algae, Mildew, Moss, and Lichen Stains from External Surfaces

Here is another one: Roof Cleaner from JNK Products

I did an inspection on a roof years back. The homeowner was having a big party so before the party, they pressure cleaned their roof. They cleaned off all of the granules from almost every shingle. Needless to say, another recommendation for replacement! It was a six year old roof!