My Dicor feels like the Pillsbury Dough Boy
I was checking my roof seals and noticed a spot here and there that needed some Dicor. When prepping the area I noticed that the seal was very puffy, like a marshmallow. I noticed a small hole in on...
Forum Discussion
exhaustipated wrote:
So does mine. How is the sealant that overlaps the cap to the roof? I'm having issues with mine and looks like I'll be replacing the roof very soon because of it. I found out that back in 2011, RV manufacturers started using new formulations of roofing material that had come into the RV marketplace. It seems that some roofing membranes are not chemically compatible with current lap sealants. When these sealants are used on some new membranes, bloating and disfiguration of the membranes results. If you have purchased a 2011, 2012 or later RV model you might want to be aware of this when doing significant repair work that involves resealing the roof membrane. I'm not looking forward to having this done as this is going to cost me an arm and a leg but it has to be done since I have experienced water intrusion.
I read what you are talking about on the Dicor website. In fact I posted that info just the other day. Dicor states that it only pertains to TPO roofs and that the bubbling is only cosmetic and does not ruin the integrity of the TPO roof.
They do make another product, called Ultra Sealant for the newer TPO roofing material.
If your TPO roofing material has a fuzzy felt like underside then you have the older TPO roof and the regular Dicor will work just fine.
