Does anyone downstream asphalt roofs? Thanks for your response.
No. Doesn’t work
^ Yeah, what he said. To be a little more clear though, it doesn’t work because you can’t get a high enough concentration of bleach on the roof. What you need is a dedicated roof pump. The most basic version being a 12 volt pump powered by a 12 volt battery. There’s a ton of info on the site if you search for “roof pump” or “roof cleaning.”
Check out pressuretek.com. You can buy a ready to go pump system for around $350ish. If you do go that route make sure to get the pump in a box upgrade.
Hope that helps.
Thanks a bunch guys for the feed back. I felt that I couldn’t get enough concentration of bleach after I experimented on my own roof, but wanted to see how far off I was, as I have two roof proposals in the works, this helps me to decide to buy. Thanks again!
