There are many on this forum who have rebuilt their Class C overheads. I've just started mine (a 27' 1991 Winnebago Warrior). The question I have has to do with materials. The overhead was rebuilt by a local RV shop 7 years ago and they didn't use any type of flashing tape under the moldings where the horizontal and vertical panels come together. The picture shows a gray tape used by Winnebago, and where the local guy touched it, there is none. I am familiar with flashing tapes for installing windows in homes and thought about using them under the moldings, since these tapes are flexible and self-sealing. I have used Eternabond on my (aluminum) roof seams and it has done a wonderful job of keeping the water out.
Two questions: 1) can you recommend motor home specific seam-sealing materials (tapes, ribbons, etc) that I should use in re-assembly?
2) What type of adhesive should I use to adhere the fiberglass skin to the replacement panels?
Here are a couple pics (more to come):