Can I lay LVP over engineered wood flooring?

[takemewest]

Short version: Our tri-level had gross carpet on the top and bottom floors that we ripped out last summer and replaced with luxury vinyl planks. We ordered enough extra to do the middle floor at some point, although that floor has decent if not out-dated engineered hardwood. The floor is in good condition, and we're thinking we can just lay the LVP right over it when we're ready to install.

Is there any reason we can't do this? We ultimately want the LVP on this floor because it's where the kitchen is, and this particular type of engineered wood seems to really be water sensitive.

Thanks for any advice!

[Sibley]

I had lvp over my hardwood (the real stuff). There was an underlayment, though that might have been the particular type. I would use waterproof (or as close as it gets at least), just in case.

[takemewest]

This one has a built-in underlayment, too, that's waterproof.  We weren't planning to do this until later this year (and hire it out at that because of our schedules), but we're both out of work right now because of the coronavirus, so we thought we'd get some major house work done.

Thanks!

[lthenderson]

I don't have any experience in such a case but my concern would be the expansion rates of the engineered wood might be a lot more than the LVP on top and you could end up with gapping or puckering depending on the season. I have never installed any flooring that didn't have a lengthy section in the installation directions on flooring prep and allowable installation surfaces. If it doesn't say there, I would call the manufacturer and ask first before attempting it.