Just wondering the proper way to finish this project:
Flooring – Finish vinyl plank flooring (subfloor step)
flooring
Related Solutions
I'd question how waterproof you need this to be. Will there routinely be water sitting on the floor? If not, you may be over-engineering things.
That said, off the top of my head, one option for waterproofing the subfloor would be to paint on Redgard:
It's a 'paint on' waterproofing membrane that you'd typically use behind tiles on cement board and the like.
Yes, this will be a problem if done as is.
If you don't stabilize that flooring by leveling the floor beneath, you will find the floor will sink under your feet as you step on it in that point, and since there's a fixed threshold, you'll create a tripping hazard in the process.
The product you show - that's a bullnose. It's used on steps. It's not suited for your intended use and it won't work anyway because you're on concrete. They're meant to be nailed in place.
I suggest you get some patch leveling compound. It's a concrete product that's fairly thick. You apply it to the uneven areas of your floor with a nice wide trowel and use a long straight board to basically boost up the sinking area of the floor to create a nice level surface. That will keep the boards from sinking when stepped on and keep the top of the floor close to level with the marble threshold for a nice safe walking surface.
Get pre-mixed leveler. One container should be enough:
Best Answer
Finish end at step problem. You said, " I was more thinking finishing it with a stair nose piece."
Yes, I do it that way. They come 2" x2 with screws to install and will hold up to traffic. Also...
There are rubbery vinyl edge products that come 4 inches deep, and with a lip down. This will look more professional. Black or brown colors. Glue made for it holds it permanently in place. Both styles come large and need cut to fit. Hope this helps.