What is a resilient channel
Andrew White
Published Mar 19, 2026
One of the most effective low -cost methods for reducing sound transmission through walls and ceilings. Resilient Channel dampens sound waves effectively, dissipating the energy and reducing sound transmission by suspending the drywall = inch from the wall stud or floor joist.
What is resilience channel?
One of the most effective low -cost methods for reducing sound transmission through walls and ceilings. Resilient Channel dampens sound waves effectively, dissipating the energy and reducing sound transmission by suspending the drywall = inch from the wall stud or floor joist.
Where are resilient channels used?
For walls, resilient channel should be installed at right angles to studs or joists, using 9.5-mm (3⁄8-in.) type S pan head screws with flange down—except at floor level, where the channel should be installed with the flange up. This can be substituted with a 13-mm (½-in.) layer of wallboard.
Are resilient channel worth it?
Resilient channels are very affordable and if you choose wisely, their performance will be more than effective for the price. While they may not be the best choice for sound insulation of your house, they are a great choice for hotel rooms or apartment buildings, for instance.What are resilient channels made of?
Resilient channels are thin and flexible strips of metal. Screwing drywall directly onto the wall and ceiling studs would cause more transfer of vibrations to get into the room. So rather than doing that, you can attach the resilient channels into the wall or ceiling studs and top them with drywall.
Can you use resilient channel on a ceiling?
Resilient channel should be installed on Cathedral Ceilings (single or double angled ceiling) with the center of the face of the channel 6 inches from the top to permit a floating angle wallboard installation. Resilient channel must be installed with mounting flange down.
Is Resilient channel the same as hat channel?
Resilient and hat channels cost about the same and are installed in similar patterns perpendicular to studs or joists. … Both RC and hat channel systems provide airspace between the insulation and wallboard, which improves sound control.
Can you install resilient channel over drywall?
Hanging RC Over Existing Drywall: When adding a 2nd layer of drywall, this should be done on the other side of the wall. If the resilient channel is installed directly over drywall (rather than studs), it creates a mass-air-mass condition that greatly reduces its effectiveness.Can you install resilient channel over existing drywall?
It should be noted that adding resilient channels to an existing wall (over the existing gypsum) will not increase STC values. There is not enough space between the old and new gypsum for RC to work effectively. A variety of fiberboard-based products have been used to achieve better STC values.
How much does it cost to install a resilient channel?You should expect to pay a little bit more than one dollar per square foot to add resilient channel.
Article first time published onHow do RC channels work?
Most RC car radios have two channels, because a car has two functions to control: steering and throttle. Steering is “channel 1,” and throttle is “channel 2.” Some radios have three channels and are typically used with cars that have reversing transmissions; the extra channel operates the transmission.
What screws do I use for resilient channel?
To fasten the drywall board to the resilient channel use 1” (25 mm) Type S Buglehead screws every 12” (305 mm). Screws should not come in contact with the stud, joist or truss. A maximum of two 5/8” (15.9 mm) boards should ever be fastened to resilient channel.
How do you calculate resilient channels?
For ceilings, the spacing is determined by the support framing. If the spacing of the support framing is 24 inches on center, then the resilient channels should be 16 inches on center. If the support framing is 16 inches, the resilient channels can be 24 inches on center.
How many resilient channels do I need?
We recommend 24″ hat channel spacing for single or double layer drywall and 16″ hat channel spacing for triple layer drywall. Select the total number of doors and windows you have located in each wall that is being clipped.
How much does resilient channel reduce sound?
As far as STC is concerned, sound isolation clips add 15-20 STC on an average. Resilient channels can add 5-7 points. So, if you don’t mind investing a little more, it is better to opt for sound isolation clips.
What is Z furring?
Furring Channel for Walls and Ceilings ClarkDietrich Z-furring is used to furr out interior masonry or poured concrete wall substrates and to support rigid polystyrene, mineral, or fiberglass batt insulation while providing a uniform plane for gypsum panel attachment.
What does hat channel look like?
A hat channel is a corrosion-resistant framing piece, which is used to fur out walls in masonry and ceiling projects. … Hat channels get their name from their hat-like shape. Hat channels contain a grooved metal piece which is perfect for leveling out walls.
How can I get STC rating of 50?
Add Soundproofing Membranes: If you need to achieve an STC of 50 or higher, consider using a soundproofing membrane. These products offer decoupling by separating the drywall from studs, and also significant mass increases.
How can I make my room soundproof?
Cover walls with thick blankets, moving pads, tapestries, or quilts. Virtually any soft material will work, though thicker ones absorb more sound than thinner materials. If you don’t mind adding an industrial look to the room, fasten sound-absorbing panels to the walls and, if necessary, the ceiling.
Can you put two layers of drywall on resilient channel?
While we’re not sure where the myth originates, evidence shows that resilient channel attached to the underside of floor joists can successfully support two layers of 1/2–inch or 5/8-inch gypsum wallboard.
Does double drywall reduce sound?
Double Drywall benefits The benefit of a double thickness of drywall with Green Glue sandwiched between is less noise penetration. The drywall adds mass, which prevents sound wave penetration, especially lower frequency, and the Glue absorbs sound vibration-damping sound vibration movement.
What does STC 60 mean?
Loud speech audible, music easily heard. STC 52-55. Loud speech audible if straining to listen, music can be heard and may still be disturbing. STC 57-60. Loud speech essentially inaudible, music can be heard faintly but bass may still be disturbing.
Is drywall a good sound barrier?
There are many reasons why you might want to create a sound barrier in your home. … While conventional drywall will help muffle sound, it won’t completely block out noise. Most drywall has a solid core made of gypsum, a mineral made of calcium sulfate that is commonly used in building projects.
What is resilient bar used for?
Resilient bars allow secure fixing of plasterboard or other boards to timber joints while improving the acoustic insulation of walls or ceilings. When properly installed, they allow the wall or ceiling to flex slightly, which absorbs sound.
How do resilient sound clips work?
Resilient Sound Clips are used to soundproof walls in ceilings by decoupling one side of the structure from the other. … Gains of up to 20 STC point can be achieved by adding this system to a wall and ceiling.
How thick is res bar?
Resilient channel is available in 18 and 30 mil thicknesses (25-20ga.).
How far apart should resilient channel be?
Maximum spacing of resilient channel is 24 inches (600mm) on center for 5/8-inch (16mm) gypsum board and 16 inches (400mm) on center for 1/2-inch (13mm) gypsum board. When multi-layer gypsum board is used, hang both layers on resilient channel spaced 16 inches (400mm) maximum on center.
What is resilient mounting?
Resilient mounts, also known as sound isolation clips, are used as a way of disconnecting the wall system in acoustic wall and ceiling assemblies, for buildings or rooms that require a high level of noise reduction or soundproofing.