Is it necessary or desirable to use a soft underlayment when installing
3/4" nail-down hardwood flooring on 3/4" plywood sub-flooring? The floor is above ground level.A Google search turns up a bewildering array of underlayments, but details on applications are often hazy. If you have used an underlayment such as I described I would be obliged if you could name the brand and/or type (material, thickness, means of attaching to the sub-floor, e.g.)
Many thanks!
Davoud