Rubber Underlayment - RubberFlooringInc
Rubber UnderlaymentGreat sound absorption and durability out of recycled materials.
Why Rubber Underlayment?
Pros:

Offers great sound resistance.
Very versatile and resilient.
Is the favorite to use under hardwoods and stone.
2mm rubber underlayment is similar in sound resistance to 6mm cork underlayment.
Is the best to use where water may be present.
Does not have to be adhered with adhesive.

Cons:

Can be more expensive.
Can stain vinyl, VCT, and linoleum flooring.

SOUND CONTROL GRAPHEstimated Sound Control