Trailer still appears to be in good condition, but there are signs of a water leak in front right corner of trailer.No sign of water damage on wall, but front storage has depressed wood floor near hatch door and small pile of yellow "powder" sitting just inside hatch door on ledge. Inside two tissue boxes seem to have absorbed water with discolored tissues all stuck together.OK, so I'm assuming a roof leak that hopefully just needs some caulking. Any advice on confirming that I have caulked the right place and that leak is just from aged caulking leak?What kind of caulk should I use?

Dicor Self Leveling caulk on the roof.Consider covering the seams with Eternabond.

If you have a walk-on roof, use the water hose, and also from the ground level in that area.

Do a pressurized cabin air leak test would be my suggestion. That may not be the only area where you have failed sealant and/or leaks. Dicor self leveling lap sealant is a Forum favorite for sealing on EPDM roofs. Eternabond tape is extremely good, also.

Could it be a leaky hatch door?

tbred wrote:Could it be a leaky hatch door?The tissues with water stains are above the hatch door, so I think it's a leak that found it's way down. Those tissue boxes must have been perfectly located to absorb the interior water because I can't find any sign of interior damage. I'll have to add wood to the hatch because the weight of the hitch seems to be a problem there now.Thanks for the caulking tips. No idea how to do an interior presssure check.

Roof Leak | Good Sam Community

RVcircus
Explorer II
Oct 21, 2015
+1...a pressure test is the best way to confirm you've fixed the leak.

westend wrote:
Do a pressurized cabin air leak test would be my suggestion. That may not be the only area where you have failed sealant and/or leaks.

Dicor self leveling lap sealant is a Forum favorite for sealing on EPDM roofs. Eternabond tape is extremely good, also.
GrandpaKip
Explorer II
Oct 21, 2015
To keep water from pooling in the corners, I cut off 4" of the trim, then sealed the channel with eternabond and Dicor. Has worked well so far.
LaunchnRetrieve
Explorer
Oct 22, 2015
Not as concerned with how it looks as I am with how it doesn't leak.
facory
Explorer
Oct 24, 2015
This product is thinner than water and seeps into virtually any crack. Once applied it will seal any leak. Apply to the area where you suspect a leak. Let it set for about 20 minutes. If it gets absorbed add some more because it has found an area that needs to be sealed. Finally wipe off the excess. If there was a leak it should be gone. This is for very small leaks that your eye cannot see. For larger leaks use Dicor lap sealant. I have used Capt. Tolleys several times and it works very well. click on the link to buy it. http://www.westmarine.com/buy/captain-tolleys--crack-cure-sealant-2-oz--243990?cm_mmc=PS-_-Google-_-Dynamic+Search+Ads-_-DSA+-+All+Webpages&adpos=1t2&creative=82268438164&device=c&matchtype=b&network=g&gclid=CPOup5aT28gCFRMjgQod1xIHWQ

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