Insulating interior walls with attic begind


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Old 07-13-20, 08:53 AM
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Insulating interior walls with attic begind

Hello all. I have a rectangular room with two attic spaces behind the two long sides. The roofing of the attic has spray foam insulation but the interior walls have no insulation at all. This room tends to be 5-10 degrees hotter than the rest of the house (I live in the south and it gets pretty warm) and I

Very rough drawing
m guessing its because the interior walls have no insulation. Would putting insulation behind the interior walls fix or at least help this problem? If so what type of insulation should I use?
Thank you.
 

Last edited by Mistigris999; 07-13-20 at 08:56 AM. Reason: Added photo
  #2  
Old 07-13-20, 09:19 AM
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Not sure it will help much, but it could be insulated. They probably figured that if the roof and ceiling were insulated that it didn't need it since it's an interior wall. You can insulate it with faced insulation, with the facing on the hot attic side. But it will always be hotter up there unless you can increase the amount of cold air return and cold air supply to the room.
 
 

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