DIY Roof Wash

I don't know what they put in Jomax, but that stuff seems to supercharge the bleach/water mix

I’ve tried a few things from Home Depot and nothing seemed effective. I scrubbed a small area under a tree shade area with a brush and that helped a little. Too much to do the whole roof though. I know the commercial guys use something that will kill all your plants if they don’t cover them below the roof. My neighbor had this happen. I prefer something I can spray since I don’t want a pile of people stomping around on my roof. Next roof i get, I’ll have the Zinc strips installed at the top to kill the algae.

Wet and Forget works but the results won’t be immediate. It took a couple of weeks for me to see the roof shingles look completely clean. I used the concentrate and probably over diluted it, but it definitely worked. My nephew soft washes in Georgia and he buys pool chlorine from WalMart…probably the same stuff other people are talking about.

Is there any consensus on potential harm done to the shingles? I always fear on the it's the mildew holding them together or something and this stuff will cause them to dry rot away.

quote:

---

The key for a DIY soft wash mixture to match what the pros use is to add a surfactant to your mix. This is what causes the mixture to cling to your roof instead of just rolling back down and into your gutters.

So just google roof wash surfactant mixture for some ideas.

---

Is this the same as Roof Snot? That's what the soft washers use around here to get the chemicals to cling. I thought it was different than a surfactant but I may be wrong.