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Old 11-18-2011, 11:18 AM   #1
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Re-insulate,Re-sheath and Re-side

We have a 1945 2 story home. the footprint is 24x24. The total siding hight would be 16". So I'm looking at less than 24x16x4(our house is a box)=1536sqf.

We currently have aluminum siding, Styrofoam board, original siding and original sheathing.

I'm thinking of re-insulating from the outside of our home and taking everything down to the sheathing.

I figure it might be a good idea to take a core sample at some point to see what the thickness's are of each layer.

For now, I'm trying to get an idea of the materials cost. What thickness of sheathing should i use 1/2", 3/4" or 5/8"? Does it mater?


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Old 11-18-2011, 03:29 PM   #2
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If the original sheathing is in good shape, leave it. Blow the insulation in from the exterior.


"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
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Old 11-18-2011, 03:42 PM   #3
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yup, just as ron said. ive done this sorta thing god knows how many times..

we strip the siding off or have a demoliton crew do it for us from there we bring in the blown-in insulators who drill their holes and insulate.. we put 1" foam back on, put tyvek on, prep the windows so the trim works out for the siding to fit to the window.. then side the house

completely stripping off the sheathing and insulating from the exterior is way more work than whats required and your leaving the house far more exposed to the weather if it starts to rain
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