I've searched the history looking for discussions on how the mass/mess of wires that go through the back of the compartment (to the elements of road) are best sealed, but haven't found anything. The spaces between the wires on our 94 Breakaway are bridged by what looks like a sheet of soft, almost tar-like, material. This material, now 16 years old, has some holes. Have others got this same configuration and has anyone found a good way to reseal this area?

Regards Bud

I use Dicor lap sealant to seal the entry holes in my solar J box up on the roof. It has stayed completely sealed and dry for years, even driving in rain.

The non-sag requires a little management to be sure it gets in all the gaps.

The self-leveling requires a little management to be sure it doesn't sag away from all the gaps it has gotten into.

I have used expandable foam as found at Lowes or H-Depot (i.e. Tough-Stuff) to water proof and insect proof lots of holes and gaps.

Downsides are 1) very messy (must wear gloves), 2) needs painting or UV deterioration can occur, 3)once begun, must use up can (not reusable), 4)not great for small cracks or holes as it is too hard to control or force into small spaces.

Upsides 1) inexpensive, 2) readily available, 3) can be had in expandable or non, 4) can be easily trimmed after curing, 5) multiple applications can be built up to fill almost any hole, 6) excellent insulation, 7) very light-weight.

I've also found that leftover bituthene from roofing projects comes in handy for waterproofing. I wish they made that stuff in white.

I have used DAP Latex multi-purpose foam sealant from the hardware store. Cheap, water clean-up, won't over expand like urethane sealants, & is a lot softer & easier to remove after it sets up. Not for applications where much strength is required. Would probably do fine for sealing cord bundles where they penetrate walls or bulkheads.

Thanks to All for the comments. The vertical configuration will limit the allowable "drippy-ness" (for lack of a better description) of whatever is going to work.
I had been kind of wondering whether the "black sheet" stuff was used in others coaches.
The son-in-law is a body repair expert (panel-beater if your from NZ)-- will have to try his knowledge on this subject as well.
However the Barth is in Phoenix and at present, we remain trying to stay warm here.

Happy New Year All

Bud

What did you paint the foam with?