Ok, I will try to keep this short. I spent roughly 6 months last year replacing the roof on my 30 ft Trail Lite. I replaced the wood substrate since most was rotted out, and glued down a new full sheet of epdm that was bought from one company. I purchased my glue from another company that sells "Lottes" of roofing materials on ebay. They had the best adhesive price by far. After gluing down my membrane and letting it cure a day or so,I noticed that I could see the color of the adhesive in the white membrane (black underside). The adhesive was a tan color and my roof was showing tan stripes from the trowel marks and puddles in the glue. Over time, these marks have gotten even darker. I have not "noticed" any signs of membrane failure, but of course that generally will be too late. I contacted the company that sold me the adhesive and they seem to have no clue why this happened and stated that they have never had the issue before. They did state that if the membrane failed due to their adhesive then they would send me new membrane and adhesive to re do the roof. Nice of them, but that was 6 months of hard work alone, on good weather days, that I do not want to repeat.
Anyone ever seen anything like this happen? Any negative effects from the adhesive "colorant" seeping through, other than being unsightly?
The top does not bother me, but the "stains" show through on the roof edges where the membrane roll over the upper edges also. That was a lot of hard work to see sub par results.
I can get a few pics and try to post or link to them here.
