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I have finally come up with some ideas to treat a large door for sound proofing and acoustic reflections by creating custom 2 sided acoustic panels for the dual purpose.
The each door is about 80 x 30 and there are two connected doors.
I cant treat the entire area for practical reasons so taking out for the door knob I have 24 x 40 to work with on the top and 24 x 30 to work with on the bottom of each door.
On the internal side both will have 4" of extra dense rock wool with fabric stapled to a plywood backing. The sound blocking/mass loading back side is where I need help.
All options will be done to the back of the plywood attached to the acoustic panel
Option 1:
a layer of green glue then adding a second piece of plywood, whole panel screwed directly into door
Option 2:
1/8" mass loaded vinyl then adding a second piece of plywood, whole panel screwed directly into door
Option 3:
add 1cm of edead (rubber butyl) to the back of the single piece of plywood and space it off the door by an inch
The each door is about 80 x 30 and there are two connected doors.
I cant treat the entire area for practical reasons so taking out for the door knob I have 24 x 40 to work with on the top and 24 x 30 to work with on the bottom of each door.
On the internal side both will have 4" of extra dense rock wool with fabric stapled to a plywood backing. The sound blocking/mass loading back side is where I need help.
All options will be done to the back of the plywood attached to the acoustic panel
Option 1:
a layer of green glue then adding a second piece of plywood, whole panel screwed directly into door
Option 2:
1/8" mass loaded vinyl then adding a second piece of plywood, whole panel screwed directly into door
Option 3:
add 1cm of edead (rubber butyl) to the back of the single piece of plywood and space it off the door by an inch
