Opened up wall, how should I insulate?


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Old 09-18-15, 12:37 PM
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Opened up wall, how should I insulate?

I am remodeling a bathroom and adjacent room and walls that are on the exterior side of the house are now open. I am trying to figure out what I should do to help insulate the walls better. The house was built in 1951 and has a stucco exterior. It looks like the walls are made up of a dark fiberboard for the exterior sheathing. The studs are a little strange in the rooms. It looks like they are 2x4 with additional strips to get it to something like 2x6 and then some more strips that were used to attach the wood panel wall to and were probably necessary to clear the footing on the foundation slab at the bottom of the wall. These strips are often thicker than the underlying 2x4, so the cavities are not a uniform thickness. Is there a simple guide to what retrofits can be done to insulate the wall? I am thinking of using Roxul insulation. Does it need to fill the entire cavity depth-wise? I would also probably go with drywall for the interior sheathing.

The room is on the first floor and in the summer it generally stays cool. I am guessing in the winter it will get a bit cold since it stays so cool in the summer.

On the bedroom and bathroom walls there are windows. These windows are original steel casement windows. I have done some research on windows and am not sure if replacing them would really be worth it, especially since I like the fact that the steel frames are really thin. I was wondering if maybe I retrofit them with laminated glass I could get some efficiency boost and sound/security benefit without tearing them out.
 
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Old 09-18-15, 01:48 PM
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Pictures would be nice.
Old steel framed windows, single pane glass, has to be a major heating and cooling loss in most cases.
 
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Old 09-18-15, 02:43 PM
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Good point, I'll post some later. Thanks.
 
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Old 09-23-15, 10:46 PM
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Question

Here are some photos of the exterior wall for the bedroom and bathroom.










Here you can see there are 3 pieces of wood stacked where the wood paneling was nailed to:




How would I go about insulating? I also would like to get the outlets grounded ideally. The outlet in the bathroom is grounded to a water pipe which I do not think is up to code.
 
 

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