RSIC-1 EXT04 clips were designed for use where an additional drop for HVAC, plumbing, or electrical runs is needed. The RSIC-1 EXT04 is an RSIC-1 clips with a 4" extension arm attached--hence the name. This clip gives you the flexibility to drop a ceiling as much as 4" from its original height. You can also use this clip to level out uneven floor joists.
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A major part of the equation for estimating the number of clips you need is figuring out the spacing of your clips. You will always space the sound clips 48" apart when possible for maximum resiliency, but you will need to decide whether you should space your hat channel rows 16" apart or 24" apart.
16" on center: Space your hat channel 16" on center if you are using 3 layers of drywall.
24" on center: (The recommended spacing of hat channel) Space your hat channel 24" on center if you are using 1 or 2 layers of drywall. We recommend two layers of drywall for drastically improved results. All sound tests you will see for any resilient sound clip is done with 24" spacing of hat channel.
Increase the gauge of the hat channel from 25 to 22 or 20 when adding a third layer of drywall in addition to shortening the hat channel spacing from 24" to 16".Layout is another aspect to estimating resilient sound clips. There are two options for laying out your resilient sound clips. The standard layout uses the least amount of clips and is the most common way to layout resilient sound clips. The other option is the staggered layout.
It is believed that the staggered layout increases the effectiveness of the clips being used. You may notice from the layout images in our resilient sound clip installation guide that the staggered layout uses more clips than the standard layout. The staggered layout will require you to include roughly 10% more clips to your estimating total over the standard layout. We suggest using the standard layout since the increase in performance of staggering the clips is minimal and ultimately costs more money and takes more time to layout a staggered clip pattern.
The RSIC-1 EXT04 has been rated to provide equal performance to the RSIC-1 clips for ceiling installation only. These clips do not provide an increase in performance over the standard RSIC-1 clips so they should only be used in situations where a 4" drop is required.
Standard or Staggered Layout: You will want to decide between the standard layout or the staggered layout when installing your clips. The images below show the difference between the standard layout and staggered layout. Staggered layout is believed to improve results slightly and tests for sound clips typically utilize staggered layout patterns.
Installing Clips: Installing clips is simple and does not require hiring a contractor.
Review our installation guide for installing resilient sound clips
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Width: | 1 3/4" |
| Height: | 3" | |
| Depth: | 5" | |
| Depth With Hat Channel: | 5 5/8" | |
| Weight: | .3 pounds | |
| Specified Hat Channel Width: | 2 1/2" - 2 5/8" | |
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