Author Topic: channels and NRC's  (Read 3375 times)

Scott

  • Guest
channels and NRC's
« on: January 22, 2001, 03:28:13 AM »
I understand the furring strips go at a right angle to the joists if put on an
existing ceiling then the RC 1's go at a right angle
to them. Do furring strips go at a right angle to studs
if put on existing wall? Also what is the NRC rating of
the Super Soungproofing mat at 1/4 inch and at 3/8 inch?
And what is the absorption coefficient per square foot?
This will be cemented to the inside of new drywall before
RC 1........Thanks.........


bjnash

  • Guest
Re: channels and NRC's
« Reply #1 on: February 06, 2001, 01:30:11 AM »
: I understand the furring strips go at a right angle to the joists if put on an
:  existing ceiling then the RC 1's go at a right angle
: to them. Do furring strips go at a right angle to studs
: if put on existing wall? Also what is the NRC rating of
:  the Super Soungproofing mat at 1/4 inch and at 3/8 inch?
: And what is the absorption coefficient per square foot?
: This will be cemented to the inside of new drywall before
: RC 1........Thanks.........
A: Yes, always at right angle to the studding.  NRC depends on the materials it's adherded to...

 

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