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My tools are still sticky from that foam job, so I skip it now
Most guys swear by spray foam for air sealing, but I don't buy it. On a retrofit, the foam glued my tools to the floor when it oversprayed, and we spent an hour chiseling them free. From then on, I use caulk and batting for gaps. It takes longer, but no surprises. My crew thinks I'm nuts, but I've never been stuck since.
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davis.keith7mo ago
Oh wow, you're not alone with the foam nightmare! I had a similar mess where it coated my entire toolbox, and we had to use solvents for days. For big gaps like @rubys80 asked about, I layer batting first and then caulk over it to lock it in place. It might be old school, but it never fails or leaves me scraping tools off the floor.
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rubys807mo ago
After the foam glued your tools, how do you seal big gaps with caulk and batting?
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cameronf887mo ago
But why use batting at all for big gaps? That stuff compresses over time and leaves voids. I'd just use the expanding foam carefully in layers, letting it fully cure before trimming it flat, then seal it with caulk. Batting just seems like an extra step that can create more problems later.
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