How big is the gap? If it is rather narrow, maybe a bead of painters caulk will fill the gap. Painters caulk does not last forever and it will fall out in a few years. If the gap is rather wide, take a measurement and buy some caulk backer the next size bigger. Stick it in the gap and see if that helps. I would stay away from expanding foam as it is messy. A 20 foot piece of caulk backer 5/8 inch in size is only 4 or 5 dollars at Home Depot.
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Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
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