Over the years, several techniques have been used in commercial or residential walls in order to block the passage of sound waves, which interfere with the peace and well being of people in a room. However, many of the techniques have been found ineffective and extremely difficult to install on existing drywall. By reading this write up, you will get to know about one of the easiest, most cost effective and the fastest technique that is commonly used to make soundproofing wallsand ceilings.
Resilient Channels for Building Efficient Soundproofing Walls
Resilient channels, which act as an acoustical sound reduction unit, are found to be one of several effective ways to minimize the sound transmission through walls into the adjoining rooms. By carefully and accurately installing resilient channels and drywall components, you will achieve the desired results for calm and quiet living.
However there are some common installation errors as discussed below to be prevented for developing soundproof walls.
• Using the wrong screws – Selecting the right screws with the right length and configuration is critical to ensure a proper installation. Make sure that you use the screw with correct length to attach the gypsum board to the resilient channel. Be sure the screws are not so tight they break the paper facing of the gyp board. Moreover, the installer should be careful to locate the screws within the space between the framing members (studs) of the resilient channels when it is attached with the floating gypsum board wall/ceiling to avoid “pinning” it to the studding.
• Inappropriate mounting of resilient channel – When fastening the drywall to the resilient channel, make sure that the channel is mounted perpendicular to the stud framing. Also consider the following during the installation:
- Attach the mounting flange in such a way that it is facing down
- Open side of the resilient channel should be installed in a way that it is facing up, i.e. towards the top of the wall. All runs must face the same way: up.
- Screws must penetrate at least 1” into the studding.
- Padding tape should be used on the face of the channel.
- Two legged flanged channel (RC-2) are used for mounting the channel to ceiling joists.
- Don’t “Stub” or pin together the edges or the walls or ceilings. Leave gap and fill with acoustical, non hardening caulk
• Sandwich installation – Do not just sandwich the resilient channel between the new gypsum board and the solid surface of the old wall. Large holes should be cut in the existing gypsum walls or they should be removed completely to mount the RC channel to the studs. Alternatively, cotton batting can be used in the space between the existing wall and the new wall mounted to the RC channel.
• Insufficient sealing of partition – Resilient channel installers should seal all penetrations such as switch boxes and electrical outlets thoroughly and carefully with “Putty Pads”. Doing so ensures optimum performance of the dead air space created, leading to a superior soundproof wall as expected.
Bring a whole new level of quiet, peace and efficiency to your home or office by using the least costly soundproofing system.
Other systems to be considered that, instead of RC channel, while more expensive, provides an even higher level of soundproofing to walls and ceilings: Sound Clips and/or “Mass Loaded Vinyl” (MLV).