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Should one get blown insulation in the attic as opposed to into the the walls of an entire house

  • November 07 2010 - Chicago
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Answers (5)

Depends, there are different types of blown insulation.  Blown in loose insulation into an attic is more acceptable than walls - due to settling issues in walls.  There are new insulation media however that is blown on/in walls without the settlement issue.



  • December 01 2010
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Profile picture for Matt Laricy
Both is the best way.
  • November 07 2010
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Try to do both one or the other is always a tough thing to do
  • November 07 2010
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Profile picture for wetdawgs
It depends.   You get the biggest bang for the buck by putting the insulation in the attic.   The house is most comfortable if both walls and attic are done.
  • November 07 2010
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Ideally you should have insulation in both your walls and your attic. Although it's often easier to just put the insulation in the attic as putting insulation in walls requires that holes be drilled in the either the exterior walls, or if that's not possible into interior walls.

The holes have to be approximately every 16 inches horizontally and at least two holes vertically to insulate between each cavity in the wall

Whether or not you use blown in insulation for the attic would probably be determined by what is there now.

Here's a link from Lowe's which shows a brief video about insulation.

http://www.lowes.com/cd_Lowes+Video+Center_94400869_?ytID=FJQmkgfrJm4
  • November 07 2010
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