Vinyl floors and hardwood floors can be installed over radiant heating.
Vinyl glued over hardwood.
Solid hardwood or engineered wood for example can bridge gaps holes and seams as well as smooth over surface embossing.
All in all as.
With vinyl flooring any one of those imperfections could transfer or telegraph to the vinyl flooring above.
Nearly all vinyl installations over plywood sub floors contain an additional thin underlayment.
The purpose is to allow for a smooth surface for the vinyl to be glued to.
In addition skim coating provides a good adhesive surface for any vinyl sheet or vinyl plank that will be glued down.
However a floor patch product usually needs to be applied called skim coating.
Installing engineered hardwood over existing flooring is a great option for people who have hard to remove floors such as glued down hardwood or glued down vinyl.
This smooths over the current vinyl pattern and prevents it from showing through a new vinyl sheet on top.
However the installation of harwood floors should be floating or made with an interlocking tongue and groove edge rather than a glue down or nail down installation.
How to lay vinyl plank over existing flooring.
When installing a floor over your existing floor you will want to choose an engineered wood floor that is at least 1 2 thick and over 4 3 4 wide.
Even worse large holes could cause parts of the vinyl flooring to form craters over time.