I’ve created a little project home studio (13x19) in my house, and I’m now trying to figure out how best to deaden the sound in the room. I’ve done a good job keeping the sound from going into other rooms (i.e., double studs, 2 layers of drywall on each side, rockwool between the studs, RSC1 channels, etc.). But now that the drywall is up and we’ve painted, the room, I want to put some sound absorbers up in the room. I noticed that John Sayers designs have some acoustical panels (covered with hemp cloth) in the studios. I had a few questions.
Were those put up after the walls were “done”.
How did you construct the panels?
Is the fiberglass exposed (but merely covered with the hemp cloth)?
Sound Absorption After Drywall Is Up in Home Project Studio
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Don Holt
- Posts: 1
- Joined: Mon Jun 14, 2004 4:05 am
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knightfly
- Senior Member
- Posts: 6976
- Joined: Sun Mar 16, 2003 11:11 am
- Location: West Coast, USA
These are all buildable as free-standing units -
http://www.johnlsayers.com/HR/index1.htm
The last pic shows typical locations for each type - depening on your experience, you may need more info to build - if so, ask-
When using rigid fiberglass, the material needs to be exposed to the sound field in order to work (in most designs) - the thicker the insulation, the more absorption - the further from the wall, the deeper the frequency that is affected. Corners are excellent places (including ceiling/wall corners) for fiberglass absorbers, since all room modes cause high sound pressure levels in corners - also, the varying depth between absorber and boundary (wall) gives wider frequency absorption, which helps avoid peaks in absorption which will make an uneven sounding room.
Covering with any cloth is OK, placing a backing board is NOT OK unless the material is already against a surface. Guilford of Maine sell fire retardant cloth in several types, but are expensive - there are also fire retardant sprays available to treat normal cloth; this raises the price, I've not done a comparison as to which is more cost effective.
Here's one link to fire retardant chemicals -
http://www.natfire.com/
And one to Guilford -
http://www.guilfordofmaine.com/
Hope that helped... Steve
http://www.johnlsayers.com/HR/index1.htm
The last pic shows typical locations for each type - depening on your experience, you may need more info to build - if so, ask-
When using rigid fiberglass, the material needs to be exposed to the sound field in order to work (in most designs) - the thicker the insulation, the more absorption - the further from the wall, the deeper the frequency that is affected. Corners are excellent places (including ceiling/wall corners) for fiberglass absorbers, since all room modes cause high sound pressure levels in corners - also, the varying depth between absorber and boundary (wall) gives wider frequency absorption, which helps avoid peaks in absorption which will make an uneven sounding room.
Covering with any cloth is OK, placing a backing board is NOT OK unless the material is already against a surface. Guilford of Maine sell fire retardant cloth in several types, but are expensive - there are also fire retardant sprays available to treat normal cloth; this raises the price, I've not done a comparison as to which is more cost effective.
Here's one link to fire retardant chemicals -
http://www.natfire.com/
And one to Guilford -
http://www.guilfordofmaine.com/
Hope that helped... Steve