My question is i have a roof to do that has fabric awnings over the windows ,i know some over spray will most likely get on them ,they asked to have them cleaned also so should i just keep them wet until i'm done spraying and then clean the awnings ,or clean them first and then redo them after the roof is done also i looked up awnings on the PWI site and found mixed reviews on how to clean awnings some say use a weak cider mix and rinse any info would be helpful , Thanks
A very weak cider mix will work. I mix mine real light for these like 1-glSH to 15gl water 2lb TSP and no ISP, surfacant as needed and then stiffen it up some with more SH if needed. (Obviously don't want to start too strong on fabric, but I think you have been using this stuff alot longer than me??, you'll be fine!!) I always rinse siding or cloth after using light luv on them. As for first or last I think I would do them last incase any black stuff got on them from roof and or gutter cleaning.
With the light luv let it dwell 10 minutes or more before deciding to stiffen it up.
Test spot as well??
-- Edited by Baltimore MD Roof Cleaning 410-482-4367 on Friday 24th of July 2009 07:03:11 AM
This could be a problem... I recently cleaned a roof with a white patio enclousure. I was very careful not to get over spray on top of this enclousure however I went back to see the roof after a good rain and noticed a small amout of white paint at the bottom of the downspout. So even if you take the precautions including wetting the areas the overspray can be an issue.
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Roofguard Shingle Cleaning & Sun-Brite Home Maintenance
I agree with Bill - start with a very light solution and spray it twice if it's not clean. Cloth fibers are easy damaged by SH and can turn to mush. However that outdoor fabric (canvas, maybe?) is stronger and might be treated with Polyethylene glycol (http://en.wikipedia.org/wiki/Polyethylene_glycol) or something similar to prevent fading and general wear and tear. Always test a hidden spot first to make sure. That being said, the fabric will come clean! Good Luck.
I happen to have run into one today!! I used the exact mix I told you, after 10 min recoat came back 10 min later and it was rinsed with a soap nozzle on PW.
A very weak cider mix will work. I mix mine real light for these like 1-glSH to 15gl water 2lb TSP and no ISP, surfacant as needed and then stiffen it up some with more SH if needed. (Obviously don't want to start too strong on fabric, but I think you have been using this stuff alot longer than me??, you'll be fine!!) I always rinse siding or cloth after using light luv on them. As for first or last I think I would do them last incase any black stuff got on them from roof and or gutter cleaning.
With the light luv let it dwell 10 minutes or more before deciding to stiffen it up.
Test spot as well??
-- Edited by Baltimore MD Roof Cleaning 410-482-4367 on Friday 24th of July 2009 07:03:11 AM