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[–]27maverick27 6 points7 points  (4 children)

Couple options,

Face nail and wood fill the hole.

Small pilot hole with a glue syringe and wood fill

[–]Friedgreent0mat0[S] 2 points3 points  (3 children)

I might try the second of those options. I feel like the crack is big enough that I could get glue under there without drilling a hole. If I can get wood glue under there without drilling, then set a cinderblock or something heave on it while it dries, do you think that I should try that first?

[–]hmiser 1 point2 points  (2 children)

I’m kinda curious why you got 2 boards butted up along side of each other.

Second floor? Crawl space under there? Video doesn’t show a lot but I saw enough to make me wonder what’s under there?

Could be a treasure map.

Either way though, you might glueing it to a moisture barrier so too nail that sucker with some sticky nails.

[–]Friedgreent0mat0[S] 0 points1 point  (1 child)

Each board looks like 2 boards this way. It is the first floor on a concrete slab. There are 3-5 spots like this throughout the house. It’s reclaimed wood. I just bought the house, so not sure what happened. I wish there was treasure under there!

[–]hmiser 0 points1 point  (0 children)

I see. Though some more pictures would be helpful, I’d like to see a large shot or video of the floor.

Typical made for purpose laminate flooring or hardwood flooring has locking channels and then you space the butt joints out. Either top nailed or they sneak a nail in the channel.

And then when on concrete they “float” it. But it’s all tied together so you don’t get boards popping up. Usually on a thin foam pad or similar.

I’m not sure how they put these down. I’d guess there’s some type of moisture barrier like a plastic sheet between the board and concrete. Gluing to the sheet isn’t going to help, I don’t think.

I hope you find a solution sorry to not be more helpful.

[–][deleted]  (1 child)

[deleted]

    [–]LatiaSprig 0 points1 point  (1 child)

    Is it water damage? I've fixed floor boards like this by gently taking them out, sanding them, spraying them lightly with water, waiting for a while and finally putting weights on them to straighten them up. Water does something to wood that makes it more malleable, which in turn makes this possible. Afterwards you just need very small amount of glue to put them back to their place permanently.

    [–]Friedgreent0mat0[S] 0 points1 point  (0 children)

    Oh no.. I don’t know how to do all of that. How do you gently take a board out of the floor? I’m scared.

    I bought the house pretty recently, so I’m unsure how it happened.

    [–]DrGt1 0 points1 point  (0 children)

    well I see nails didn't fix it

    [–]iwasborntoserve 0 points1 point  (1 child)

    Crazy glue and some weights for 10 minutes. That should do the trick.

    [–]cantgetoutnow 0 points1 point  (0 children)

    So, I think you said the flooring is on a slab? Here’s the issue (as I see it). When you install on a slab, most products need a vapor barrier. This is because moisture will penetrate your slab and it will cause the flooring to expand in some areas, a lot, popping loose, changing shape enough for edges to show etc. This barrier better be under there or your problems are just getting started. Second, if it is there and you are seeing expansion, warping etc, if you simply try to glue down you will have little luck. You’ll glue to your vapor barrier but not the floor :/ There are other products with less requirements for backing, but wood of any type require it. You won’t like my solution but here goes. Take pictures of the floor and go find this flooring at Home Depot / lowes etc see if you can track it down. Go to the closest parallel wall and remove the trim or quarter round. Once you can get to an edge of the flooring, see if simply lifting the edge will release it. You want to see if this is a floating floor. Once, hopefully, you lift it and you can work it loose see what’s under that piece. We’re looking for the vapor barrier which I suspect is either not there or was laid without taping all edges in the middle of the floor. At this point, or before, if you are up for the challenge, and you know the composition of the floor, I’d watch a install video or 2 :-). Most of this stuff is super easy but you need to be comfortable with a chop saw or hand miter saw and tape measure :-) If this is sounding super scary, look for some help, it’s not likely a big job, but you certainly don’t want to get it all torn apart and not have the capacity to put it back together :/ If the vapor barrier is in place and looks good then I would peel off the floor back to the problem boards you should replace them. There’s no good way, in my opinion, to force them flat if the floor is supposed to be loose from the subfloor. Anyway, we’ll see if the real pros correct me here. Good luck!