Very Poor Results From Heng's Roof Coating

solismaris wrote:

larry cad wrote:

rhagfo wrote:

I think using the acetone was likely a mistake, as Heng’s is an water based product.

21 years old rubber roof with Hengs and no lifting. I agree, why did you use acetone?

Ok, no acetone next time. That is what was recommended for Eternabond so I thought that would be right for final cleaning before applying Heng's. But people seem in agreement that I rushed the job or screwed up the prep. I'll study the Hengs instructions carefully and try to contact somebody at the company for advice. And I'll do a sample area first and give it a month to test it.

No I didn't do it all in one day. More like 3. But it was somewhat faster because I did not remove any roof structures like vents because they were already well protected with Eternabond so I only recoated up to the Eternabond or slightly beyond.

Well the best I can say see if you can get to a time when it is warm not only during the day, but also over night and low humidity. We full time and were hosting in the Columbia River Gorge and did ours in late August. The only process I started early was the scrubbing of the roof. That was a hands and knees job, with a medium stiff scrub brush, seemed like it took a long time to do the roof on our 32' 5er.
The other thing I did was once the roof was scrubbed, and I was edging and coating, I never wore shoes during the application. I had a clean mat at the base of the ladder, and would only work in stocking feet.

The hardest part was going four days without using the AC in 80+ degree temps.