Our interior walls are 2x4 and uninsulated. Right now I'm redoing drywall in the laundry room that backs up to our master closet and part of the master bath. The wife runs one of those food dehydrators with a constant fan running. My thought was this laundry room is nice sized and could be a good place for it if.... it didn't disturb our sleep. I'm thinking something simple like fiberglass insulation. Thoughts? Successes or failures trying to do the same thing?
Anyone added insulation for sound deadening?
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Roadworthy
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Obviously something is better than nothing. Try isolating the appliance from a solid surface which can resonate. Try a sheet of polyfoam insulation between the appliance and a solid surface. You could even try a piece of carpet on a thick carpet pad. You want dead air in the wall but the wall itself may be resonating with the hum of the motor. Do a bit of experimenting to try to determine the actual source of the sound and reduce it as much as possible before finishing the wall.
not2old
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You can buy insulation that is designed for sound proofing.
timbatrader
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I use to build sound reducing rooms around noisey machinery the main aim was to isolate the wall lining in the inside from the outside wall the top and bottom plates wider than the studs and the studs set alternately against in or outside wall so no connection for the noise vibrations to transmit from one to the other a bit of fiberglass blanketing as well helps
Get some sound deadening material like rockwool or kaowool - works better for sound deadening than lower density fibreglass
ROCKWOOL Safe 'n' Sound 3 in. x 15-1/4 in. x 47 in. Soundproofing and Fire Resistant Stone Wool Insulation Batt (59.7 sqft) RXSS31525 - The Home Depot
ROCKWOOL Safe'n'Sound is a stone wool insulation for use in interior partitions of residential wood and steel stud construction where superior fire resistance and acoustical performance are required. Withstanding temperatures up to 2150°F (1177°C), Safe'n'Sound is non-combustible and will not...
www.homedepot.com
Hay Dude
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I added sound deadening insulation between my basement and first floor so we could have a downstairs gym for the kids to lift weights and blast their……music 
It works great. Also did this for a lot of customers around laundry rooms while under construction.
It works great. Also did this for a lot of customers around laundry rooms while under construction.
Have tractor did travel
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Mikester is right - use rock wool insulation NOT fiberglass. Also, you can buy mass loaded vinyl. Comes in different widths and thicknesses. We used 1/8" and am glad we did not get 1/4". That would have been too heavy to work with. Cut to the height of your ceiling and nail to the studs. You'll need one or two people to hold the vinyl while another person nails into place with roofing nails (need a big head). You can also use one layer over the other for even more sound deadening and if you had to buy more than you really need to do the room. Expect the law of diminishing returns to apply. You can get carried away with installing another wall immediately adjacent to the existing wall - keeping footers, studs, and headers from touching each other, but that's a lot to get in to.
Gem99ultra
Veteran Member
Additional benefit can be had by adding the sound deadening insulation over the ceiling, taking special care to cover the joining walls. Sound also carries a good deal around electrical outlets, so some attention might be given to those areas.
ponytug
Super Member
We had fiberglass insulation put in on a bathroom adjacent to the dining room and kitchen in a prior home, and it was very successful. My only regrets were that we didn't use a solid core door and a remote fan.
So, yes,
way up for insulating the laundry room, and putting a good door on it. Fiberglass worked well for us, though I know rock wool is denser and has better sound attenuating properties.If you can go the route of alternating the studs and wall attachment with some rubber on the 2x4 surface that will certainly help further attenuate the sound.
The noise is why I don't dry foods in the current house; there isn't a good way to get away from the noise.
All the best,
Peter
As I read all these great replies the heat kicks on. Then the light bulb in my head also came on. The laundry has a cold air return in it. Metal ducting. This might all be mute, but I'll do a test run. Peter, you are correct on the noise of these dehydrators.
My local HD looks like they have some sound insulation options anyways. Different brand than Rockwool though. We'll see where I go with this. Thanks for the replies folks.
My local HD looks like they have some sound insulation options anyways. Different brand than Rockwool though. We'll see where I go with this. Thanks for the replies folks.
