part-e compliant:
Acousticel G8

overview
G8 is our new improved thinner version of our R10 product. This resilient insulation gives superior performance at reducing impact noise and is designed for installation below a floating screed on most concrete floor constructions.
description.

Designed specifically by Isolgomma Italy to form the
sound-absorbing layer beneath concrete screeds for the reduction of
impact noise. This unique resilient insulation gives superior sound
loss performance and is suitable for inclusion in most concrete floor
constructions.
This mat is engineered to give maximum reduction of impact
noise through concrete floors. Independently tested, this sound
insulation has been proved to comply with the latest Building
Regulation requirements for separating floors as detailed in the
Approved Document E, in particular with regard to the following:
Maximum dynamic stiffness - Minimum thickness under loading
Weighted reduction in impact sound pressure level (∆Lw) of not less
than 29dB
A typical installation is as shown in the illustration below.

Supplied in rolls composed of granulated extra resilient EPDM
rubber bonded to a tough, non-woven waterproof backing.