I have a Park Model Trailer, had to cut open the plastic wrap under the trailer
to repair a water leak. I need to know what would be the best type of tape to
seal up the openings, would if be wise to use tyvek tape, because it is not
climate control? Or is there something better, someone said I can use Gorilla
You need to determine the purpose of that plastic.
If that original plastic was meant to be a vapour barrier, don't use
Tyvek. Tyvek allows humidity to pass through it, and vapour barrier
plastic doesn't. You don't want humidity getting into your insulation
because it will condense and form water droplets right inside the
insulation. As insulation gets wet (or even fills with frost) it loses
it's ability to insulate.
If you don't know what the plastic is for, and the trailer manufacturer
doesn't give you a credible answer, then I'd play it safe by using an
insulation that doesn't need a vapour barrier because it's impermeable
to air, such as expanding foam or extruded polystyrene insulation. That
way, you side-step the need for any plastic on either side of it.
He's not replacing the plastic with tyvek. He has sliced open the plastic
for repair work and now wishes to reseal the plastic with tape. Tyvek tape
will do this. He is not replacing any insulation.
Oh, Gee. If that's the case, I'd just use duct tape or whatever strong
tape the OP has plenty of. Under a trailer is not a place where it's
going to get much UV exposure or even get wet (unless the trailer is
being moved on a rainy day). If Tyvek tape sticks well to that plastic,
it would work too.
Ordinary duct tape will not hold up well with the variable temp and humidit
y changes under a trailer. You need something guaranteed to adhere under t
hose types of conditions. Also, I would staple the new plastic to the floo
r joists as closely as reasonable, to help reduce the tension on the tape a
t the seams.
Trailers I have seen/been under have steel beams running the length of the trailer, and wooden crossbeams. But I haven't been under the newer models so I don't know what the current standard construction/building practices are.
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