Author Topic: Home Cinema new build  (Read 40223 times)

Offline mervinesh

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Home Cinema new build
« on: April 02, 2013, 07:04:27 AM »
Hi guys...

My home cinema room is still under construction. It is 7.2 long x 4.6 wide. The roof is 3m high. Above the concrete slab(roof) is a bedroom. The slab is 255mm thick. Is it necessary to add a ceiling with insulation to protect the bedroom from sound and vibrations or will the concrete slab be good enough?

I would really like to keep the height of the room and save the cost on the ceiling. Also it makes installing the projector directly onto the slab a bit more easier.  :thinking:

Any advice?


Offline scrarfussi

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Re: Home Cinema new build
« Reply #1 on: April 02, 2013, 07:47:22 AM »
From the little bit that i have learned . You can put a false ceiling with the insulating material in between to insulate the bedroom from the sounds . also to avoid reflections from the ceiling
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Offline mervinesh

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Re: Home Cinema new build
« Reply #2 on: April 02, 2013, 10:41:07 AM »
Thanks. The main question is, and I should have stated this in the first thread  ...How effective is a 255mm concrete slab at blocking the sound from the bedroom.

If it can be heard faintly...that might be good enough. If does not and it feels as if you are in the room where the music is then its a no brainer, I have to add the false ceiling.

Offline Abu

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Re: Home Cinema new build
« Reply #3 on: April 02, 2013, 10:44:02 AM »
Have bass.. will travel  >:(

Offline mervinesh

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Re: Home Cinema new build
« Reply #4 on: April 02, 2013, 10:48:55 AM »
just to add on...The Bedroom will have underfelt and carpet...I wonder if something could be added to the floor of the bedroom like soundmat to help with sound blocking vs false ceiling below?

Offline antonsa

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Re: Home Cinema new build
« Reply #5 on: April 02, 2013, 03:39:36 PM »
Hi, Concrete is actually a good conductor of sound, BASS.

What you need technically, is a air-gap aswell as a in-between material... put some 150x40 accross the ceiling, fill the cavities with uthermo/rockwool or such next a thick beam of silicon
along the beams, then just drywall skrew rhino board on...

the silicon between the rhinoboard and the beams (150x40) will help isolate the energy from the rhino transmitting into the beams. its called de-coupling

if you do this properly you can get some pretty impressive results.

Offline mervinesh

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Re: Home Cinema new build
« Reply #6 on: April 03, 2013, 07:20:47 AM »
Thank you Anton. It's settled then. False ceiling with insulation(aeropink 135mm) + air pocket confirmed.  :thumbs:

Offline mervinesh

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Re: Home Cinema new build
« Reply #7 on: April 16, 2013, 10:35:28 AM »
Pics of my Home Cinema room







Offline antonsa

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Re: Home Cinema new build
« Reply #8 on: April 16, 2013, 10:49:43 AM »
this is awesome!!
great to be doing this from the ground up!

Offline mervinesh

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Re: Home Cinema new build
« Reply #9 on: April 16, 2013, 11:19:44 AM »
Thanks..Will  try to document it and post as many pics as I can... :thumbs:

Offline Atjan

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Re: Home Cinema new build
« Reply #10 on: April 22, 2013, 01:20:40 PM »
Great stuff!  :thumbs:

You should also consider reflections. If you have a hard floor, you should try for a soft ceiling, if both is hard you'll end up with a echo chamber.
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Offline Chingy

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Re: Home Cinema new build
« Reply #11 on: April 22, 2013, 01:23:19 PM »
will be following this build
 
 :thumbs:
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Offline mervinesh

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Re: Home Cinema new build
« Reply #12 on: April 22, 2013, 01:32:41 PM »
Great stuff!  :thumbs:

You should also consider reflections. If you have a hard floor, you should try for a soft ceiling, if both is hard you'll end up with a echo chamber.

Hi Atjan

The room will definitely be carpeted.


Offline Jiven

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Re: Home Cinema new build
« Reply #13 on: April 22, 2013, 10:54:04 PM »
I'll be following this too. Mine won't be close to as elaborate, but will need some ideas.

Thanks for the info on the aerolite. The special ends 1 August. I should be able to do the whole roof for under R5k :)
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Offline mervinesh

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Re: Home Cinema new build
« Reply #14 on: April 30, 2013, 08:12:08 AM »
Update : Room walls have been plastered.