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Old 01-22-2011, 02:01 PM   #1
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Blown in insulation question


I have a project that I am doing for a friend where I need to insulate two walls surrounding an entryway that is very cold. The walls are already up so I would need to blow the insulation in from the top of each stud bay. My question is, is there some kind of diy insulation kit for this or does anyone have a better idea, without taking down the walls? Thanks

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Old 01-22-2011, 02:30 PM   #2
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Blown in insulation question


Remove the drywall and insulate it right the first time. You don't know if there are firestops in the walls and removing the drywall will let you put up plastic vapor barrier sheeting so you can seal around the receptical and switch boxes and make sure any windows and doors are weather chinked properly as well.

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Old 01-22-2011, 05:03 PM   #3
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Blown in insulation question


How old is the house/entryway?

Is the cavity assessable from the outside- vinyl or Hardie siding?

If you rent a blower and cellulose, do you have other areas to fix?

You could dense pack it compressing the existing insulation, without a vapor barrier and probe for fire-stops; http://www.karg.com/pdf/Insulaton_de...and_Biddle.pdf

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Old 01-22-2011, 05:16 PM   #4
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Blown in insulation question


It's actually a condo that was built about 8 years ago. The outside is brick, so it's not accessible. No, there are no other areas to fix, so I guess renting a blower would not be worth it. Do you know how much the blowers rent for? Thanks a lot for the info, I appreciate it.
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Old 01-22-2011, 06:55 PM   #5
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Blown in insulation question


Most box stores rent the blower free after you buy the product.... Call locally, price changes with location.. Location also warrants vapor barrier or not.

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Old 01-22-2011, 07:08 PM   #6
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Blown in insulation question


Quote:
Originally Posted by GBR in WA View Post
Most box stores rent the blower free after you buy the product.... Call locally, price changes with location.. Location also warrants vapor barrier or not.

Gary
Great, thanks. I'll call HD and Lowes and check the local codes.

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