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11-15-2009, 09:21 PM
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#1
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Newbie
Join Date: May 2008
Location: MA
Posts: 22
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Another Insulation Question...confused?
I am about to insulate my attic remodel. My plan was to vent and insulate the rafters (R-38C) from the soffit to roof and the gable ends.
Should the knee walls and ceiling (attic remodel) also be insulated?
I have read many things, just trying to getting a feel for what people think?
Thanks
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11-15-2009, 09:36 PM
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#2
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Extreme DIY Homeowner
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 8,832
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Another Insulation Question...confused?
I insulated the knee wall on my 2nd floor, old rafters have existing R25
In my additon I'll have R38/R38C in the rafters & R19 along the lower ceiling
The more insulation the better IMO
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11-16-2009, 12:12 AM
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#3
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Member
Join Date: Mar 2009
Posts: 2,211
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Another Insulation Question...confused?
Seal all air leaks before insulating:
Notice the access door and foam blocks under the knee wall to stop air movement under floor: http://www.simplesavings.coop/simple...ee%20walls.pdf Make sure you have ventilation from soffit to ridge.
Be safe, Gary
__________________
When did you last clean your dryer ducting? If it was over six months ago, then do it this weekend! You don't want to be a dryer-fire statistic.
Wash your lint screen of residue from fabric softener sheets that restrict air flow leading to longer drying time.
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11-16-2009, 07:16 AM
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#4
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Newbie
Join Date: May 2008
Location: MA
Posts: 22
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Another Insulation Question...confused?
Thank you for your responses.
So insulating the rafters from soffit to roof with R-38C and what should be used for the knee walls and ceiling? I live in Massachusetts.
This will be inspected by the builing inspector also.
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11-16-2009, 07:41 AM
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#5
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Extreme DIY Homeowner
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 8,832
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Another Insulation Question...confused?
I insulated one part of my knee wall with R19
Another part will be insulated with R13 or R15
My knee wall storage is still warm, but the wall insulation will help keep the heat in the main area
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11-16-2009, 11:42 AM
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#6
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Member
Join Date: Mar 2009
Posts: 2,211
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Another Insulation Question...confused?
Depends on each location: http://www.ornl.gov/~roofs/Zip/ZipHome.html
http://www.ornl.gov/sci/roofs+walls/...on/ins_06.html
Your County may have a web site just for this information.
Be safe, Gary
__________________
When did you last clean your dryer ducting? If it was over six months ago, then do it this weekend! You don't want to be a dryer-fire statistic.
Wash your lint screen of residue from fabric softener sheets that restrict air flow leading to longer drying time.
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