While volunteering at a marathon last night I was talking to a friend of mine about how my next big ticket item will be roof washing. A lady who was also helping asked if I could clean her metal roof. My question concerns the rations of water to SH, is it the same for metal roofs, is a different technique required due to the quick runoff, etc.
Use roof pump. this was my mix on my last metal roof 28 gallons h2o 12 gallons of 12.5%SH 24ozs of fresh wash or green wash. rinse rinse and rinse some more…
We recently performed a non-pressure clean on a really steep metal pitch couple weeks ago think the ratio was 12 gallons to 18 gallons of water can’t remember, really turned out good
