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Old 13th March 2016, 07:47 AM   #1
flexiblefoam is offline flexiblefoam  Australia
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Default "The dreaded ceiling"

Hi All,

I've been studying the wonderful 2004 "Premium Home Theater" book (cheers Dr Gedlee for making it freely available) while preparing to convert a free standing 6m x 9m x 3m high steel shed to a home theater (that's metres not miles).

One question - why not CLD on the ceiling?

I have no ceiling in the shed so I'm considering constructing the ceiling using method I (pages 212-213), sitting it on inner isolated stud walls. I intend to install 2 double layers (of 2 x rock wall sheets and liquid nails), furrings etc. on the walls; one double layer on the inside of the outer steel wall, and another double layer on the isolated inner timber stud walls. Shouldn't I try to replicate this somehow for the ceiling? My main concern is airborne sound transmission to nearby neighbors (about 6m way).

Suggestions please!
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Old 26th August 2016, 08:41 PM   #2
chrisb is online now chrisb
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Location: victoria BC
probably no reason at all -you could even consider sloping the ceiling and at least one of side walls?
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Old 26th August 2016, 08:54 PM   #3
planet10 is offline planet10  Canada
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Location: Victoria, BC, NA, Sol III
"The dreaded ceiling"
When i was at AES in 1999 i overheard an acoustician say that sloping the ceiling can sort something like 75% of a rooms issues.

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