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Old 12-13-2009, 12:25 PM   #1
Join Date: Apr 2009
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Question What is a GOOD sealant/caulk for the edges of our roof??

Uh oh. We now have a leak where the rubberized roof meets the metal outside right above our bed pillows and it's dripping in the storage area above us.

(We have a 1997 Jayco 5th wheel)

When I first joined here awhile ago, I had asked about a good caulk, and someone recommended Dicor's caulk. So I just now did a google search and found Dicor Lap Sealant. I'm assuming that's what I'm supposed to get, but the shipping is HORRIBLE!! $9 or $11 so far for ONE tube which costs less! No way.

Since we are parked in an RV park in a small town, and do have some local hardware stores, can someone recommend an alternative??? I was told not to use silicone. So what do I look for that might be common in a hardware store??

drip, drip, drip, drip

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Old 12-13-2009, 12:31 PM   #2
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Look for an elastomeric lap sealant. Do not use a petroleum based lap sealant or regular silicone caulk. Lowes sells an elastomeric sealant in their roofing department. Look to see if the product is safe on EDPM roofing products.

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Old 12-13-2009, 12:55 PM   #3
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If you haven't been up on the roof yet, you may discover it isn't the seam. It is easy for a branch to spike a hole in a rubber type roof that you only discover once it starts raining. For a small hole, a float of the Dicor type sealant will work. for a tear you may need a patch.
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Old 12-13-2009, 05:33 PM   #4
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I too use a store-brand (Dicor type) sealant. You can buy either self-leveling or non-sagging sealant. Buy the one you need, self-leveling cannot be used on anything except a horizontal surface.

Water leak entry points can be very difficult to locate. I had the Sealtech Manufacturing Inc. - RV leaks bubbles recreational vehicles
system used on our RV to locate leaks when it was new. The operating technician located 3 water leaks. One I had found inside, he located the entry point about 14' from where it showed inside.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"
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Old 12-14-2009, 08:27 AM   #5
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If I were going to recaulk in an area where it couldn't be seen from the ground, I'd use Eternabond. Do it once and you'll never need to do it again.
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Old 12-16-2009, 03:53 PM   #6
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Amen to Eternabond--once and done.
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Old 12-16-2009, 06:18 PM   #7
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Yeah, Eternabond that the ticket.

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