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Old 04-19-2016, 07:03 AM
 
Location: Orlando, FL
19 posts, read 16,188 times
Reputation: 22

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Hello Guys, I am building a new 4 story townhome in the outskirts of Philly. Apparently, they install R13 on the exterior walls, but for $1650 they will upgrade to R15 for all the exterior walls. In addition, none of the interior rooms have insulation in between the rooms so between the small rooms upstairs and the hall bath/ master I am going to have them add R 13 to help with insulation and noise reduction a little. We are moving out of 5 bedroom house and we want this townhome to be comfortable living for us.

Can anyone tell me if R15 provides a little saving and comfort during the Summer and Winter Seasons?
I am from Florida, we barely have a Winter and during Summer the AC is always kicking.

I am being told the added insulation to the 2x4 walls will help on over all bills, and heating/ cooling of the areas. The place will have 2 AC/ Heat Units.

Any insight? I know the return won't be immediate but over time I am okay to know that the return is there and the noise in between the rooms will be muffled when someone is flushing the toilet or showering, ect.

Thank you for any advice : )
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Old 05-26-2016, 10:28 AM
 
Location: DFW Texas
5 posts, read 4,777 times
Reputation: 10
Insulation in the walls won't do much for sound reduction. The key is to seal the air path through the wall that the sound will travel. You can go as simple or extreme as you want on this. There are some putty pads called Quite Putty that are used to wrap outlets that work great to reduce sound transfer from one room to another. Other products like green glue will help deaden the transfer of sound. Finally, adding mass to the walls is huge. Double thick sheetrock is cheap and very effective to reduce sound transfer on interior walls. Also, consider using a old fashioned cast iron down pipe for toilets on the 2nd floor.
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Old 05-26-2016, 10:32 AM
 
Location: Orlando, FL
19 posts, read 16,188 times
Reputation: 22
Quote:
Originally Posted by AtticFoil View Post
Insulation in the walls won't do much for sound reduction. The key is to seal the air path through the wall that the sound will travel. You can go as simple or extreme as you want on this. There are some putty pads called Quite Putty that are used to wrap outlets that work great to reduce sound transfer from one room to another. Other products like green glue will help deaden the transfer of sound. Finally, adding mass to the walls is huge. Double thick sheetrock is cheap and very effective to reduce sound transfer on interior walls. Also, consider using a old fashioned cast iron down pipe for toilets on the 2nd floor.


Thank you very much for responding and providing me this information!!!
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