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Old 02-04-2012, 11:37 PM   #1
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installing 1" of insulation on outside of house need advise


What do you do with the windows and doors

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Old 02-04-2012, 11:43 PM   #2
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installing 1" of insulation on outside of house need advise


Are the windows stay as is or are you removing them and replacing them?

http://www.greenbuildingadvisor.com/...foam-sheathing

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Old 02-04-2012, 11:45 PM   #3
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installing 1" of insulation on outside of house need advise


Why are you installing 1" of insulation on the outside anyway?
What are you trying to accomplish?

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Old 02-05-2012, 12:16 AM   #4
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installing 1" of insulation on outside of house need advise


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Why are you installing 1" of insulation on the outside anyway?
What are you trying to accomplish?

Andy.
Andy,

Depending on the climate location, most folks will use 1" of exterior foam to air seal the outside wall and thermally break the stud wall from outside.

I wish there were more non-oil based alternatives out there right now but there just aren't that many right now.

2012 is supposedly specifying this stuff now. Wonder what foam lobbyist earned his pay this time.
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Old 02-05-2012, 12:25 AM   #5
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installing 1" of insulation on outside of house need advise


Thanks Wash. actually I understand the over-all reasoning for doing this if the house in the original construction stage. But the OP is going to remove existing siding and I am wondering what the rational is behind doing that.
There are much more cost effective and less labor intensive ways of adding insulation to existing walls if that is what he is trying to do.

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Old 02-05-2012, 08:17 AM   #6
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installing 1" of insulation on outside of house need advise


+1

Absolutely correct. I would make zero sense to remove existing siding that is otherwise okay to put up rigid foam.

If the poster is replacing the siding though, this is an ideal time to make the home much more efficient and air tight. Foam backed siding does about 1/50th of what it promises as compared to cladding the entire home in a rigid foam board.
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Old 02-05-2012, 08:20 AM   #7
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installing 1" of insulation on outside of house need advise


Trent what's on the outside of the house now?
Is this a block home?
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Old 02-05-2012, 09:52 AM   #8
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installing 1" of insulation on outside of house need advise


Sorry I should have made it more clear, I live in Canada and this is an older house so i do need more insulatiion. My siding should have been replaced 10 years ago but wasn't and the windows are ok about 4 years old. I am looking to achieve a thearmol break and then new siding.
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Old 02-05-2012, 10:15 AM   #9
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installing 1" of insulation on outside of house need advise


What kind of siding do you have now?
How thick are the walls?
What do you have now for insulation?
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Old 02-05-2012, 10:37 AM   #10
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What kind of siding do you have now?
How thick are the walls?
What do you have now for insulation?
Before vinyl siding was introduced there was a particle board siding that is the stuff. My walls are 2x4 with pink insulation R12

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Old 02-15-2012, 11:28 PM   #11
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installing 1" of insulation on outside of house need advise


Still need some advice on the original question
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Old 02-16-2012, 02:42 PM   #12
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installing 1" of insulation on outside of house need advise


What is the exterior trim around the windows currently?
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Old 02-16-2012, 10:52 PM   #13
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installing 1" of insulation on outside of house need advise


http://www.greenbuildingadvisor.com/...-outie-windows

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Old 02-21-2012, 09:38 AM   #14
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What is the exterior trim around the windows currently?

The exterior is 1x4's, and the windows are flush to the outside wall.
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Old 02-21-2012, 10:23 AM   #15
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installing 1" of insulation on outside of house need advise


That is an easy build up then.

Are you doing new windows or have them been done?

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