Mark A Dadian

Cedar shingle formula?

Do you have a soft wash chem for cedar shingle roofs? Thx

Is it mandatory to rinse asphalt shingles after using the slo mo or may it be left on the surface with the SH?

Thanx guys. I appreciate the suggestions. Have a great Holiday season. In 4 days I let my daughter start singing Christmas songs aloud.

Hi folks, I have a client who has a large cedar roof that needs to be cleaned. I've reached out to Sullivan Roof, but he hasn't gotten back to me in a week. Suggestions for non-pressure cedar roof remedy? Anybody??? Thanx in advance. Mark Dadian

Thank you Gary, Thank you Chris. I just contacted a supplier in NH, Harcros Chemical (they're in Tampa too), and they are charging about the same, $130 for a 55 gal drum. I thought that was high, but I guess that's the going rate. Chris, I'm going to be in your neighborhood the 3rd week of March. Is there a chance I could take you to lunch and talk a little shop?

Hello Chris, 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