Isolation Clip FAQs

| More

1. What does ARSIC stand for?

AlphaResilient Sound Isolation Clip


2. How do I know where to place the ARSIC clips and how many I will need for my project?

The Acoustical Solutions web site ( has an installation guide for the ARSIC clips.


3. Do I need to use insulation along with the ARSIC clips for better noise control?

Yes. The ARSIC clips greatly enhance the performance of the insulation. When you just add insulation to a wall or ceiling without ARSIC clips there is little change in the acoustical performance of the system. However, when the total decoupling (isolation) of the gypsum board from the structure is accomplished with the ARSIC-1, the insulation becomes very important.


4. Do I need to place ARSIC-1 on both sides of the wall?

ARSIC-1 clips are typically installed on one side of an assembly. Using ARSIC clips on both sides of the wall will improve the STC by completely and totally decoupling the gypsum board from the structure. If the ARSIC-1 is used on one side only, ideally the clips will be installed on the source side (noisy side) of the wall to keep the noise from getting into the structure.


5. Are ARSIC clips hard to install? I don't want to short circuit the system during installation?

The installation procedure of the ARSIC clips is very easy. Just follow the installation guide


6. What are STC's and IIC's and how do they work?

STC (Sound Transmission Class) is a measurement that indicates how much noise is stopped (absorbed) by the wall or floor ceiling assembly (airborne or voice noise).
IIC (Impact Insulation Class) is a measurement that indicates how much impact noise is stopped in a floor/ceiling assembly.
STC and IIC are logarithmic, like the Richter scale. Each 10 points represents a doubling of the noise reduction capacity of an assembly.


7. Do I have to use drywall furring channel (hat track) with the ARSIC-1 or can I connect the wall board directly to the ARSIC-1 clip?

You must use a hat channel (25 gauge, hemmed edge or 20 gauge with no hemmed edge). You cannot install the wallboard directly to the ARSIC-1 clip.


8. There are many different types of ARSIC clips on the web site. How do I know which is the correct one to use on my project?

The ARSIC-1 clip is designed for use with various framing designs and applications. It will attach to wood, metal, CMU or concrete. All of the clips have multiple applications.


9. What is the performance difference between the ARSIC-1 clip and Resilient Channel? Will I be able to tell the difference once it is installed?

In head to head testing the ARSIC-1 outperforms the old fashioned RC channel by 10 STC points and 7 IIC points. This reduction is a halving (reduced noise level by 50%) of the amount of noise you hear.


10. Once I install the ARSIC-1 do I need to do anything else to help the noise isolation?

Yes. You need to seal all potential air leaks with non-hardening Acoustical Caulk to achieve the best Field Sound Transmission Class (FSTC) and Field Impact Isolation Class (FIIC) ratings. Use fire rated sealant where required. Enclose all recessed light fixtures with proper noise control design enclosures (fire rated when required). Seal all electrical boxes with Firestop Putty Pads. Evaluate the installation sequence to maximize noise control. Evaluate air ducts & air returns to ensure best FIIC and FSTC results.


11. What is the difference between the lab STC's and IIC's versus the Field STC's and IIC's?

A "lab" test is a very controlled environment. The field testing demonstrates how the product works in real world applications.
The accepted filed variance between a lab test and a field test is 5 STC and IIC pts.


12. How does the ARSIC-1 assembly compare to other wall and floor-ceiling assemblies?

The ARSIC-1 clip is the lowest cost highest performing acoustical UL Fire resistive design component available.


13. I can hear a lot of noise from the people on the floor above me. Is there an easy solution to reduce the noise?

This is a common problem in condos and apartments. The "recommended" application of the ARSIC-1 clips is to remove the existing ceiling, insulate the cavity, install AudioSeal Sound Barrier, seal the recessed lights, Firestop Putty Pads the electrical boxes, then install a new gypsum ceiling with the ARSIC-1 clips. If you don't want to remove the existing ceiling the ARSIC-1 retro can be used directly over the existing gypsum only if there is no other resilient product already in place. The best results will be realized with the removal of the existing gypsum board ceiling. The acoustical performance of the ceiling will be greatly enhanced using either of these applications.


14. How does the ARSIC-1 work?

The ARSIC-1 is made with natural rubber which de-couples the framing structure from the gypsum board. This stops the sound vibrations from traveling to a different area. The rubber isolation of the ARSIC-1 is very efficient in stopping noise transfer.


15. Does the ARSIC-1 work on both wall and floor-ceiling assemblies?



16. What is the maximum load for each clip?

The maximum acoustical design load is 36 pounds per clip.


17. What are the dimensions of the ARSIC-1?

Length = 3 inches
Width = 1 1/4 inches
Depth = 1 5/8 inches, with 7/8" hat track attached


18. What type and size of fastener can I use?

The "recommended" fasteners are as follows:
Wood: 2 1/2" x 10 or 12 wood screw with a hex head.
Steel: 1 5/8" x 10 or 12 steel screw for 25 ga. steel
Steel: 1 5/8" x 10 or 12 self drilling screws for 20 ga. or stronger steel
Concrete: 2" drive spike or tapcon fastener (min pull and sheer of 140 pounds)
CMU: multiple choices, check with your local fastener supplier for a fastener that has a min 140 pounds pull and sheer design load