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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 IN 1SG retired;PPA,Good Sam Life member,FMCA."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 the Constitution. "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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