Talked to a 30-year veteran at the supply house yesterday who swore by glue-down over stretch-in for basements with any moisture history

He showed me a basement job he did in 2018 that still looks perfect with zero ripples, and it finally clicked why all those callbacks I've been getting on my stretch-in jobs might be from the concrete slab, not my installation, so has anyone else made the switch and regretted it?

2 comments

2 Comments

park.robin1mo ago

Man, I feel you on this. That moisture issue is a beast that will wreck a stretch-in job no matter how good you are with the tucking. I had the exact same problem for years, getting callbacks every spring when the humidity kicked up. That 2018 job your guy showed is proof it's not you, it's the slab. Made the switch to glue-down myself two years ago for any basement with a history of dampness. Haven't had a single ripple come back since. No regrets at all, just wish I'd listened to the old-timers sooner. It's a little more work upfront with the adhesive and the prep, but it saves so much headache later. You're not alone in this.

the_sam1mo ago

Hang on though, I gotta jump in here because that's actually a common mix-up. Glue-down and direct glue-down aren't the same thing with moisture. Glue-down carpet still has a pad and backing that can trap moisture and mildew if the slab is damp. What you really want is a full spread, like a moisture-cure urethane or a pressure-sensitive adhesive that lets the carpet breathe. That's what the old-timers really meant when they said to glue it. The standard glue-down method you're describing can still get you callbacks if the slab has any vapor transmission at all. I've seen guys do full glue-down on a wet basement floor and the whole thing peeled up a year later. It's not just about switching methods, you gotta pick the right adhesive for the conditions.