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Old 09-19-2016, 05:13 PM   #1
Join Date: Aug 2011
Posts: 38
Am I panicking?

After cleaning the inside roof of the back bunk of our new to us 17z I wanted to test the water proof of both bunks. Sprayed with hose to simulate rain. The seams at the bottom of each bunk (non zipper part) feels damp. Is this normal? Also an area in front bunk that must of had an issues in the past feels damp too. This is a picture before it was cleaned....how to you waterproof the inside? This is above the window flap. Can't use 303 on vinyl.

THANKS!!! Might be just overreacting.

Ps.. i don't think i can get seam sealer in that area

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Old 09-21-2016, 04:36 AM   #2
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So normal to feel moisture along seems even though water is not pouring in?

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Old 09-21-2016, 05:21 AM   #3
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Couldn't be condensation from temp differences, could it? Maybe a warm inside and a colder outside? Adding cooler water with a warmer trailer could cause the condensation. Just reachin' here...
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Old 09-21-2016, 06:44 AM   #4
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You don't waterproof the inside... you waterproof the inside to stop water coming in.. Are you sure the damp is not condensation on the inside?
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Old 09-21-2016, 06:53 AM   #5
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Looks like normal condensation. Put a MaxAir dome over your vent, leave the vent open, and have a lower air-inlet open (lower corner of a window?) and much of it will be eliminated.
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Old 09-21-2016, 07:08 AM   #6
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It's vinyl covered canvas but it's still tenting with sewed seams. Use good old fashioned seam sealer on it, inside and out.
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Old 09-21-2016, 10:48 AM   #7
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The pic is what it looked like when we bought it. I guess that could have been a condensation stain (never thought of that). When I did the hose spray I thought about the cold transfer too since it was in the sun all day. I did seam seal that lower seam since. Had a 2000 Coleman pop up prior, just never had any of these 'issues' hence why am just being overly cautious. Don't know what the previous owners did or didn't do and want to stay dry when the time comes. Scared to death of leaks in campers.

I can use seam sealer on the outside vinyl?

Again... Thanks!!!

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