I hope this finds you well. It's been about 13 years since we spoke last. Nice to see you busy. It was -1 this morning in NH, not a lot of water flowing around these parts, even our lake is frozen over.
I'm certain you don't remember me, but you gave me some tips as to how I could improve my PW business to include roof cleaning. I've tried a number of approaches (sodium hydroxide, peroxide, hydrox & perox, and recently even wet'n'forget (don't judge me). I think of our conversation often, but the difficulty comes in obtaining SH. No one sells it in bulk around here, and short of getting 24 5-gal pool jugs on a skid for $12 each ($288 for 120 gallons), it's inconceivable.
Two questions, if I may:
1) Is there a mix of SH and something else (powder, liquid, slurry) I can use to do the same kind of kill that straight SH does? Yeah, I'm one of those that uses a 35 gal trash barrel to hold my solution when I house wash. I don't down-stream cuz there is never enough concentration to kill the green mold on the siding around here. I pump it with a shur-flo;
2) Up north here, we frequently come across 1" - 2" carpets of lichen & moss in addition to the black algae stains. Are there short-cuts to resolving this problem? I'm thinking a roof-rake, but not sure if that would do damage to the surface. Do you folks even have that kind of build-up?
Thanx for taking the time to review my post Chris. It would mean a lot to me if I could get some help with this.
Mark A. Dadian
Hydro-Pro Power Wash, LLC
118 Church St., #1
Laconia, NH 03246