tmaxx
Dec 27, 2014Explorer
Sealant for fiberglass roof - water intrusion in cabover.
I've got a 2007 Itasca Impulse. It has had some water which has collected under the cabover area. If I press my hand on the underneath of the cabover from the outside, I can hear the water inside. I plan to remove the plywood from the inside so the area can dry. In the meantime, I am trying to figure out what sealant to use to seal up the leaks on the outside. I notice the previous owner used what looks like a clear silicon caulk. If I lightly push my finger across it, it peels off quite easily. It's got a fiberglass roof. Along the bottom of the cabover running from drivers side to passenger's side is a long seam which looks like it could be allowing water in whenever the vehicle is in motion.
1) What kind of caulking should I be using? Since this is a fiberglass roof, does that make a difference in the caulk selection?
2) Is it best to remove the old caulking first before applying the new?
3) I've read on these forums about Eternabond. Is this something I should consider for sealing up the seam which runs horizontally on the bottom of the cabover? What about on the edges running up the left and right front of the cabover? Is this preferred to something like Dicor sealant?
Thanks.
1) What kind of caulking should I be using? Since this is a fiberglass roof, does that make a difference in the caulk selection?
2) Is it best to remove the old caulking first before applying the new?
3) I've read on these forums about Eternabond. Is this something I should consider for sealing up the seam which runs horizontally on the bottom of the cabover? What about on the edges running up the left and right front of the cabover? Is this preferred to something like Dicor sealant?
Thanks.