Instructions / Assembly
The technical content of this literature is eective 5/31/12 and supersedes all previous information.Pub. No. CD-Full Line 5/12
clarkdietrich.com
RESILIENT SOUND ISOLATION CLIP
The RSIC-1
®
 resilient sound isolation 
clip is used in conjunction with 
drywall furring channel to fasten 
gypsum wallboard to various wall and 
floor-ceiling designs and applications, 
while simultaneously providing 
acoustical separation (decoupling). 
This significantly reduces the amount 
of impact and sound that filters from 
surrounding rooms—reducing the 
noise transfer by 75 to 100%.
Product code Pcs./Bucket
RSIC-1 200
• UL Classified R16638
U.S. Patent No. 6,267,347 of MTEC, LLC.
The RSIC-1 clip is a registered trademark of MTEC, LLC.
UL and UL Classified are registered trademarks of Underwriters Laboratories, Inc.
Installation of Resilient Furring Channel 
to Steel or Wood Framing Members
Note: These guidelines are for ClarkDietrich Building System’s single 
leg RC Deluxe™ and RC-1 Pro, and double leg RC-2 Pro. Details of 
construction for a specific assembly to achieve the required fire or sound 
or acoustic rating shall be obtained from fire test reports, sound, or 
acoustic tests, engineering evaluations, or listings from recognized sound 
or acoustic laboratories.
Install resilient furring channels at right angles (perpendicular) to the 
framing members. The resilient furring channel shall be positioned with 
the slotted hole(s) directly over the framing member. The resilient furring 
channel shall be attached to the framing member using the screw hole 
provided in the mounting flange. If no screw hole is provided or located at 
the framing member, attach through the mounting flange.
No more than two layers of up to 5/8 in. (16mm) gypsum panel products 
should be installed to resilient furring channel.
Resilient furring channels should not be spaced greater than 24 in. 
(610mm) on-center when installed on wall framing members. For ceiling 
framing members spaced 24 in. (610mm) on-center, install resilient 
furring channels at 16 in. on-center maximum. For ceiling framing 
members spaced 16 in. (406mm) on-center, install resilient furring 
channels at 24 in. (610mm) on-center maximum.
In the case of wall framing members, resilient furring channels should be 
installed with the mounting flange of the resilient furring channel down, 
except at the floor or starter row where the mounting flange may be 
installed with the flange up, to accommodate fastening to the framing 
members. In the case of two-legged resilient furring channel, attach only 
the lower mounting flange to the wall framing members, except as noted.
Note 1: By keeping the mounting flange down, the weight of the gypsum 
panel products will pull the resilient channel away from the stud improving 
the sound rating.
Note 2: Two-legged resilient furring channels may be attached to the wall 
and ceiling framing members using both legs. Alternately attach the legs 
of the resilient furring channel to the framing members. This method of 
attachment may reduce the sound rating performance of the assembly. 
Verify acceptability with the approving authority prior to installation. 
For walls, install the first (lowest) row of resilient furring channel no more 
than 2 in. (51mm) o of the floor and the last (highest) row of resilient 
furring channel not more than 6 in. (152mm) from the ceiling. For ceilings, 
the first row and last row of resilient furring channel shall be located not 
more than 6 in. (152mm) from the adjacent wall. (Measurements are to 
the center of the face of the resilient furring channel.)
Attach resilient furring channel to framing members with screws only. For 
steel framing, Type-S x 3/8 in. (9.5mm) pan-head framing screws may be 
used. For wood framing members, Type-W or Type-S screws (minimum 
1-1/4 in. (32mm) long) may be used. It is not recommended that nails 
be used. Install the screws in the holes provided in the mounting flange 
(whenever possible).
Splicing of resilient furring channel members shall be done by “nesting” 
the ends of the resilient furring channel members directly over the 
framing member and screwing through the mounting flanges into the 
framing member. (An acceptable alternative would be to butt the resilient 
furring channel members over the framing member leaving a minimum 
1/16 in. (1.6mm) gap between resilient furring channels.)
Gypsum panel products shall be attached to the resilient furring channel 
using a screw length to ensure that the screw point does not make 
contact with the framing member. (This will minimize the potential of the 
screws hitting the wall studs and “short-circuiting” the sound resistance 
eectiveness of the resilient furring channels.)
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SOUND-RATED SYSTEMS










