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-   -   Insulate from the Outside In (http://www.diychatroom.com/f15/insulate-outside-70025/)

altc81 04-28-2010 01:02 AM

Insulate from the Outside In
 
The idea is to remove all the exterior stucco and expose the framing. then have an electritian do some rewiring that is badly needed...

anyways.... there is currently no existing insulation on the exterior walls... is spray foam insulation really the only way to go? can fiberglass be installed from the outside, in? what about an additional vapor barrior? can these still be installed 'backwards' i guess you can say...

thanks

Just Bill 04-28-2010 07:16 AM

Foam or fiberglass can be installed from the outside. Vapor barrier always goes to the heated side of the wall. That definitely is a lot of work, older house??? Reason for tearing off outside instead of inside, just curious???

altc81 04-28-2010 08:42 PM

Quote:

Originally Posted by Just Bill (Post 434635)
Reason for tearing off outside instead of inside, just curious???

Because we plan on updating the siding. the exterior stucco is about 60 years old. planning on hardiplank for siding and thought it would be a great opportunity to insulate w/o touching interior walls.

any clue how to install the fiberglass batts backwards? would vapor barrier even be neccessary in los angeles?

Just Bill 04-29-2010 07:42 AM

Yes to vapor barrier. You just lay the batts in place, with the vapor barrier on the inside, how hard is that?? Cut around outlet boxes, slice vapor barrier and try to fit behind (in front of ) pipes.


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