Hey Everyone,

Hope you're all doing great!

I was curious if someone could help me figure out how to fix a crack in the floor that I am having in our home. My wife and I have noticed that a crack has slowly increased (since the beginning of summer) from a few inches to about 14 inches now. It seems to have stopped as well, so we think its stopped.

Below are a couple of pictures showing the problem. We first thought it was a crack, but we're not sure thats the exact problem and if theres a straightforward answer. We've tried using a Rust-Oleum Polyurethane Pen - but that wasn't a solution at all. Based on some research we think a glue of some type would help. Any suggestions/opinions and help in general would be great.

https://www.dropbox.com/s/gqrzswyed5...706_223258.jpg

https://www.dropbox.com/s/xrkkdgy1v7...706_223316.jpg

https://www.dropbox.com/s/08hgjxrx4o...706_223325.jpg