If you re looking to avoid ceiling cracking the industry s leading authority is recommending resilient channel as a solution.
Resilient channel ceiling leveling.
Source while the resilient channel is a metal bar with holes the hat channel is shaped like a hat from the front view.
When correctly installed a gypsum board resilient ceiling system will slightly give when pressure is applied.
The real solution involves the installation of furring strips either wood or resilient channels.
Probably you have read our detail guide on how to soundproof wall using the resilient channel in that we learned how using the resilient channel you can set another layer of drywall on top of existing wall and can trap the noise.
As i have mentioned many people believe the sound clips and hat channels method to be a more effective decoupling.
Deciding on resilient channel vs.
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The gypsum association released a technical document ga 227 13 recommendations for the prevention of ceiling cracking their publication outlines methodologies for mitigating cracking in large span gypsum board ceilings due to fluctuations in temperature.
The procedure shown here is a systematic method for locating the lowest spot on a ceiling then installing the furring strips.
Soundproofing membrane ultimately every architect needs to determine their stc requirements and the most cost effective way to meet them.
To install resilient channels on wood or metal framed walls one should attach resilient channels with the attachment flange down except at floor level where it should face up and at right angles to the wall studs.
Find the lowest spot on the ceiling and shim all the furring to that point.
While resilient channels are meant to be attached directly onto the studs sound clips provide an added checkpoint the vibrations need to pass before reaching the hat channel.
As an acoustical consultant we typically recommend rc for gypsum ceiling assemblies under open web truss and concrete decks.
Furring is a technique that is used to level out walls and ceilings with metal channels.
It s not as difficult as it sounds.
Sound clips and hat channels.
In 1985 usg stopped manufacturing the resilient channel that makes up most of the lab test results today that we see.