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Old 06-04-2023, 08:41 PM   #1
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Join Date: Jul 2019
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Roof gutter caulk

DS32 Class A. Thin line of some sort of elastic caulk has sections coming off. It is next to the gutter from front to back. Coach has fiberglass roof. Figure I can use any type of silicone based caulk. Comments and suggestions appreciated. Thanks
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Old 06-05-2023, 07:22 AM   #2
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Location: Jersey Shore
Posts: 625
Do not use silicone.
Use a self leveling sealant on the roof. You can use Dicor or another brand made for rv roofs. Check to be sure it is compatible with a fiberglass roof. Use non-leveling on vertical surfaces.
If you use silicone, nothing, not even silicone, will stick to itself when it needs to be resealed or touched up.
If it's just to seal the edge of the gutter and will not be in contact with the roof, you can use LEXEL. It's crystal clear. I've used it around my taillights and windows. It's a little harder than silicone to work with, just follow the directions. I used painter's tape to help get clean lines (just don't leave the tape on while it dries).
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caulk, roo, roof

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