Metak Roof Cleaning

**bigbadwolf** · 09-08-2009, 07:00 PM

what does anyone use to clean a metal roof...

**A-PLUS** · 09-08-2009, 09:49 PM

You will need to go weaker on the SH and rinse very well. Don't want to rust the screws.

Sometimes I will just use soap and a truck brush.
Remember, very slippery when wet.

**bigbadwolf** · 09-08-2009, 09:59 PM

the roof is un-walkable. It i silver painted tin and it is black. I'm doing it on Friday I will post before and after pictures. Unable to brush.

**A-PLUS** · 09-08-2009, 10:26 PM

Bryan, is it regular paint or silver coat? If it's silver coat you can go stronger on your mix.

**bigbadwolf** · 09-08-2009, 10:39 PM

it looks like a coated roof

**The Cleaning Doctor** · 09-08-2009, 11:02 PM

The one I did I used Simple Cherry and only 7% of the mix was bleach. Go heavy on the surfactant.

Here is a link to the pics

http://www.youtube.com/watch?v=N3qq_...layer_embedded

**FLORIN** · 09-08-2009, 11:12 PM

Strong housewash mix works for me. Ive even heard someone say downstream f-13

**Isaac B** · 09-09-2009, 12:19 AM

I clean a few of these a year. I mix my normal housewash, then add 6 oz of F-13, down stream, and dwell for one minute, and rinse rinse rinse. I do small sections at a time, if it dries on it will discolor, or leave a residue. I only walk them if single story. shallow pitch, as they need a little pressure to clean, are usually dirtier, and need a little pressure. When walking one, I clean a section before stepping off the ladder. Clean and wet is safer than dirty & dry. I wear redwing boots with the gummy sole.

**Chris Apple** · 04-30-2010, 12:34 PM

Has anyone cleaned a metal shingle roof?

The one That ive came across has brown metal shingles. Its not extremely large. Ive been trying to figure out what to use and I came across this thread. I do have a dedicated roof pump but am thinking about downstreaming this one and rinsing like hell. Any more tips?