A Bazillion Roof Bubbles
A couple months ago we noticed some bubbles forming under the EPDM roof material above the bedroom in our barely 3 year old 29-5T. It seems to have gotten worse. If you look at the photo you will see ...
Forum Discussion
dougrainer wrote:
The most common cause of this mass of bubbles is a Incorrect use of a roof cleaning product. The product had some petroleum distillates in it and that is a no-no for EPDM roofs. Bubbles will NOT let water penetrate. Another possible cause, but rare for all those bubbles, is a roof edge seam is not sealed and when in transit air is getting under the membrane. But this usually causes a few LARGE bubbles. Doug
Thanks. Interesting thoughts.
As the original owner of this RV I can say categorically that unless it happened before purchase this roof has never had any roof cleaning product or product with petroleum used on it except for a few small spots where it was cleaned with mineral spirits prior to applying some Eternabond tape over a small tear. None of those repairs were anywhere near the bubbling and the mineral spirits was used sparingly, quickly and washed off. There is no sign of any EPDM separation or other damage in those places.
The roof seems well attached around the edges and there is no evidence of any seam failure anywhere else for that matter.
May never know what caused this with 100% certainty.
