hello,
I have a few questions, first can you put glue down engineered wood over lenolium? If not, what can I do? The lenolium is glued to a concrete slab.
I have solid prefinished 1/2 in my foyer. It is glued down on a concrete slab. There are several areas that have popping when you step on them. How can this be fixed?

thanks
Beth

Beth,

I'm in the process of glueing engineered down to concrete. I ripped up all my lenolium. I've heard various stories about adhesion problems, and I didn't want to risk all the work and effort and go over the lenolium. Maybe it'll be fine and maybe it won't depending on who you believe. A lot depends on what kind of glue you use, so you'll have to check with the manufacturer. Some glues are water based and others urethane.

It's a lot of hard work to get glued lenolium off concrete. I pulled the top portion off by hand and with the use of a flat head shovel, and then got the rest off with various scrapers.

Using 4 inch razor blades with a handle works really well for areas with a lot of glue around the edges. Change your blade often and it comes off pretty quickly.

I think the prep-work in getting all this glue, paint and various junk off the concrete slab is harder than the install. Glueing enginereed on concrete is a pain all the way around.

Your new flooring will only be as strong as the floor you are laying over.
However,,, I'm thinking you have vinyl flooring and that can act as a moisture barrier if it is down tight and not de-bonding.
I still think it is much wiser to remove the existing floor, place a moisture barrier on the concrete sub-floor then install the wood onto the moisture barrier.
There is more to the story concerning installing over vinyl, but suffice to say it is better to remove.