Continue this process around the room until the floor is covered with only a small gap between the walls and the underlayment.
How to lay timber floor underlay.
Installing underlayment on concrete is a bit different than a wood sub floor because obviously you can t tack it in.
First lay down the underlay.
Add about 10 to that number to account for any possible mistakes and warped boards.
This is not the final position of the row so cut off the felt with a utility.
If using self adhesive underlay peel off a small piece of plastic from the top of the underlay.
How to lay solid wood flooring installation methods.
Measure a 2 by 4 foot section of plywood from the end of a full sheet of plywood with a tape measure then cut the piece with a circular saw.
If you have knee pads now is a good time to put them on as you ll be kneeling down a lot.
Multiply length times width of the room.
Cut the underlay with scissors to fill the room.
Peel back the covering of the adhesive tape on the first sheet and smooth the plastic edge of the second sheet down onto the tape of the first sheet.
Some products use double sided carpet tape to attach the pieces.
Plywood underlayment is a thin plywood material that is most commonly used under resilient flooring materials such as vinyl and linoleum sheets and tiles.
Set the roll on the floor at the end of the wall then roll it across the floor to unwind enough felt to make one row.
Position this piece into the corner of the room to fill.
If you have a vinyl floor you may be able to install your flooring directly on top of it.
It can also be used under hardwood laminate and carpet but this is much less common these days because subflooring is typically smooth enough for these materials many of which are installed with a different type of underlayment or pad.
Remove any carpet or other flooring.
Other products require applying adhesive over the surface of the concrete a little at a time as you roll it out.
Run it at a 90 degree angle to the floorboards to help make them stable.
Determine how much flooring and materials will be needed.