colored shingles

[monsterwash]

Hey guys,last year was my first year dabbling in the roof cleaning world, did a lot of reading on this site about the proper way to do things but do not remember reading about this topic. Fortunately all the roofs I did were either in the grey or black family and never had an issue, but I was out prospecting this weekend and stopped to speak with a few homeowners that had roofs needing attention but a few had red shingles, one was even a shade of green. My question is this. Have any of you had problem with colored shingle becoming lighter in color or discolored after using 12.5% sh. I believe there is no such thing as a dumb question and I want my company to have a great reputation as it grows. Any comments ??

 

[DeJay]

I have never had any issue but it does seem they clean up better.

 

[Doug Rucker]

Nope. Red and Yellow black and white, they are all OK in Bleach's Sight......lol

Never had a shingle that the SH affected it and I've cleaned many red, green, tan, etc shingles.

 

[Larry Millette]

Never had an issue either. The shingles ALWAYS clean up and return to their natural color.

 

[John Doherty]

As a general rule of thumb sodium hypochlorite only effects organic things, that's why it eats up cotton shirts but a synthetic like polyester is usually ok.