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Old 06-28-2007, 10:45 PM   #1
(nearly) fearless diyer
 
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Blow insulation behind bv?


Hello everyone,
I have a 1980's bv wood frame home about 1600sf. The utility bills are a little high, and I am planning to blow some additional insulation into the attic.

My question is, should I try to fill the air space between the walls and the brick also. There is a space of about 1 to 2 inches in there. The exterior walls are 2x4 and have fiberglass insulation between the studs and there is some sort of foam panel on the outside of the studs, then the air space I am asking about and finally the brick. The airspace opens into the attic right behind the soffits. There are the metal strips mortared into the brick wall that nail to the 2x4 studs. This will likely interfere with getting the insulation all the way to the bottom of the wall, but I figure some is better than none.

Is this a good idea, a waste of time & money, or am I going to have moisture or other types problems?


Last edited by mlovell; 06-28-2007 at 10:52 PM.
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Old 06-30-2007, 11:23 AM   #2
Eibwen
 
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Blow insulation behind bv?


You dont want to fill that area with insulation. In fact, if you take a look at the brick facade near the bottom on the outside, you should see weep holes every so often to let water out that gets behind the facade. Normally they will look like they forgot to put mortar in the joint. Dont fill them in...

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