Measure carefully to ensure that the plywood is an appropriate fit.
Fill in subfloor seams floating vinyl.
Tape a 3 foot square piece of scrap vinyl to the concrete with duct tape sealing the edges tight.
Once those fill in you are good to go a nice level floor you can finally play jenga on.
You can have these pieces cut by a lumber yard or use a circular.
All panel edges should be staggered at least 2 inches to the subfloor seams for increased stability.
If you ve ever installed this flooring it s good flooring but no matter how hard you try your going to have some gaps in the seams.
If you re installing sheet vinyl or peel and stick tiles you also want to fill knots that you would be able to feel under the flooring.
This is how i fixed that.
Today s vinyl floors show every imperfection so nail holes and sunken edges must be filled in with hard quick setting filler appropriate to the kind of underlayment you have selected.
If you have any high spots in your subfloor sand them down using a belt sander.
Wipe away or use a knife to peel away any adhesive that gets into the seams.
This filler is more flexible however and moves with the vinyl flooring as you.
If the tape.
When you re done clean away any debris using a vacuum or broom.
Leave the vinyl in place for 72 hours.
Floating vinyl flooring will require a vapor barrier link to 6 mil vapor barrier upon installation on a concrete subfloor.
Cover your existing subfloor area where new vinyl flooring will be installed with 1 4 inch plywood.
If you have this problem then you may be wondering what you can do both to improve the look of your vinyl plank flooring and also to fill in gaps that can allow cold to enter from the subfloor.
Or you could just leave it as it is because you re probably the only person that is ever going to notice it.
An effective strategy for filling large gaps is to mix patching compound to a stiff mortar like consistency trowel it into the plywood subfloor gaps and wait for it to stiffen before troweling it smooth.