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Old 01-12-2023, 12:31 PM   #1 (permalink)
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Roof Leaks Water

I am having trouble with water leaking from my roof where I had bad seals on the roof racks on my 2006 Mariner(Escape), I have removed the roof rails, put gorilla tape over holes, sprayed a rubber coating on both sides, got the passenger side sealed up but the driver's side still leaks like crazy in a rain storm, the headliner will get soaked from the windshield to just past the B-pillar, any help would be appreciated

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Old 01-12-2023, 02:15 PM   #2 (permalink)
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What's the diameter of the hole? Headliner in the way?
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Old 01-12-2023, 02:59 PM   #3 (permalink)
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Probably a 1/4in, I have put silicone in all the holes and put gorilla tape over that and it still leaks, I seen some rubber strips about 4-6 inches wide and about an 1/8in thick, I had thought about those but I am undecided.
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Old 01-12-2023, 04:09 PM   #4 (permalink)
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Silicone probably not adhering to the edge of the sheet metal.

Ream the hole if necessary and find a plastic 1/4" hole plug?


s.yimg.com/aah/yhst-16933743911250/1-4-white-plastic-hole-plugs-plug-buttons-caps-flush-type-44.gif
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Old 01-12-2023, 09:49 PM   #5 (permalink)
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Quite surprising that silicone didn't work. BTW have you never tried expansion foam?
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Old 01-13-2023, 11:22 AM   #6 (permalink)
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Believe it or not, car wax is a really effective mold release. My thought is the leak originates from a windshield seal failure or a weld seam in the same area.
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Old 01-13-2023, 12:47 PM   #7 (permalink)
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Yeah, my only leaks have been from windshield gasket and a folded seam in a firewall that was damaged from a collision.
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Old 01-17-2023, 11:57 PM   #8 (permalink)
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I used butyl tape to seal the holes when I drilled the roof of my Astro Van to add a rack to hold my solar panels.

I drilled the holes, cleaned the area with alcohol, put down the tape, and then bolted down the rack on top. It has been leak free for 6 years now. If you are leaving your factor rack off use a bolt and washer to fill the hole and provide for a solid cover over the tape.

https://www.homedepot.com/p/Dicor-Bu...34-5/310964213
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Old 01-18-2023, 12:00 AM   #9 (permalink)
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Quote:
Originally Posted by freebeard View Post
Silicone probably not adhering to the edge of the sheet metal.

Ream the hole if necessary and find a plastic 1/4" hole plug?


s.yimg.com/aah/yhst-16933743911250/1-4-white-plastic-hole-plugs-plug-buttons-caps-flush-type-44.gif

I have 5 of those in the roof of my ambulance where they removed the light bar. They used silicon and those plugs and 3 out of 5 of them leak. Right now I have duct tape (The aluminum tape actually used for ductwork) over the top as a temporary fix.
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Old 01-18-2023, 12:38 AM   #10 (permalink)
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Quote:
Originally Posted by JSH View Post
cleaned the area with alcohol
Ethyl or isopropyl?

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