Putting foam in the doors will do almost no good. It will increase STC of the door by less that 3 dB at mid-range to low frequencies. Sealing the perimeter of the door with weather stripping (the denser the better) will have a much greater effect.
Do you mean the noise is reflecting back into the room from the refigerator? I know it will stop noise from coming thru the sound deadening material but I don't know about stopping noise being reflected back into a room. Sounds like you might need an accoustic material (like ceiling panels with sound trapping holes in it).
Yes. I used on my basement door to stop well pump noise from coming into the living area and it does work. Remember it does have a look like a sheet of rubber but it can be cut and painted.
yes, recommend to apply it directly to the dishwasher unit itself, underneath the factory installed fiberglass insulation blanket, which usually covers the top and two sides of the appliance, sometimes the rear as well. This will more than double the sound deadening of the existing insulation when you replace the blanket, AND apply the 3M barrier to the inside walls of the kitchen cabinet housing the dishwasher. Apply to the FLOOR underneath the DW, the side walls, and underside of the countertop above the DW for best results.
The material is about an 1/8 inch thick and very solid. It does not tear. I would say it is more like rubber than tar paper! That being said, it does not stretch. It will bend around corners, but will not stay put without staples. It is easy to cut with a razor knife.
This is actually the application that gave birth to this product one Monday after a Superbowl Sunday party and a high traffic noisy bathroom. The product acts as a moisture barrier, vapor barrier and sound barrier. The perm rating is just at .374, a class II barrier. There are no organics within the product. Mold will not grow on the product. ASTM G21-96 test yield 0 on all products. Test data confirming this may be found at http://www.dbsoundcontrol.com/testing.
I can't see it working for your needs at all. Its to heavy to place overhead and it is to flexable. A skim coat of spackle (mud) would be a better way to go. Don't even try to use it for your appllication! This is a sound deadening material only.
Fronm my experience with this product I would say it can keep the noise out from both sides. The way you want to install is very feasible. The material could be stapled to the studs and drywall placed over it to help reduce transmission thru the studs also. I can't tell you about which way to face it but I feel it won't really matter. I just know it will really help!
It is a moisture barrier as well as noise and air barrier.
You can use adhesive or staple it in place (the type of stapler used to put insulation in place) It does not have a sticky back.