In the case of most hardwood floors it is more than enough to choose underlayment with a thickness of 2 to 3mm.
Thick recycled felt underlayment for engineered hardwood floor.
This natural cork underlayment has a thickness of 0 25 inches and is an ideal option for tile hardwood and laminate floors.
Some manufacturers might claim that thicker is better for sound absorption but that is not always the case as it is not only the thickness that matters to minimize sound.
The roberts felt underlayment comes in a 360 square foot roll and is priced fairly.
A popular option if you want to install this eco friendly floor underlayment is qep cork underlayment roll.
In addition to repelling pests cork also can help to reduce the incidence of stress cracks in your flooring.
It is dense 4mm thick and made from recycled felt and an attached plastic film provides decent vapor barrier protection.
Black felt paper is rolled out over the wood subfloor prior to installing the new floor.
As we prefaced at the top this product is designed for use with engineered and laminate wood floors not nailed floorboards.
It also makes the floor noticeably more cushioned when compared to flooring installed over bare subfloor.
With a staple down or nail down installation over a wood subfloor using solid flooring or engineered flooring it is recommended that an underlayment of 15lb.
By absorbing noise instead of deflecting it super felt reduces sound transmission.
Some manufacturers might claim that thicker is better for sound absorption but that is not always the case as it is not only the thickness that matters to minimize sound.