If you want to install lv flooring in both you ll have to remove the underlayment in the kitchen or add some to the dining room.
Installing vinyl flooring over osb.
This is due to osb s tendency to swell and warp along the seams over time which could eventually show through the vinyl flooring.
Existing sheet vinyl and carpet if your kitchen floor is sheet vinyl and the dining room is carpet don t forget that the sheet vinyl will have a 1 4 inch underlayment beneath it but the carpet won t.
The smooth finished side goes up when you install osb as a subfloor.
Remember that laminate flooring like swiss krono usa s laminate wood flooring is a floating floor it will expand and contract as temperature and other conditions change.
How to lay vinyl plank over existing flooring.
When installing over existing oriented strand board osb an underlayment must be added between the osb and the tiles.
Osb subfloor is mostly serving as a base under the finish floor hardwood engineered wood vinyl tile etc and even below the underlayment in some cases.
To install each piece peel the adhesive backing off the plank and stick it to the subfloor.
Other osb negatives contractors builders and home remodelers have mixed opinions about the use of osb for flooring mostly tending toward the negative.
Most flooring vinyl flooring manufacturers do not allow direct glue down directly to the subfloor.
One of the evolutions of the do it yourself industry has been the creation of easy to use and easy to install products such as vinyl plank flooring.
Direct gluing vinyl sheet and tile to osb subfloorsinstalling a glue down vinyl floor sheet or tile directly over oriented strand board osb subflooring has become a hot topic for me of lately.
An osb sheet has a finely corrugated unfinished side and a smooth side that is often coated with a clear finish.
I have had people asking about installing sheet lvt and vct directly to the osb subfloor without the use of an underlayment most flooring vinyl flooring manufacturers do not allow direct glue down.
This means that the choice of subfloor i e what you install laminate over needs to provide the right support.