Insulation, Radiant and Vapor Barriers - Insulating Poured Cement House

Hello Keepers of Insulation Know-How...

I gutted a stucco home and discovered it was constructed of poured cement not block. Very unusual for 1948 I hear. Originally the studs were made out of cement but I have added 1x6 strips on the exterior walls. The depth varies in some places but for the most part I am dealing with a depth of one inch. Looks like my only option is the foam board cut and wedged in between the furring strips. Some people have suggested I also put up a plastic barrier behind the sheetrock. I know cement does weird things with water and I don't want to attract moisture to the walls. Does anyone have any thoughts on the matter?

Thank You,

Lizard

Dead air spaces and moisture barriers applied to cement walls, apply to sub-grade sections of the stucture. In your case you can apply the foam board to the masonry walls and do not apply a moisture barrier. After you sheet rock, make sure any penetrations like outlets and switches are sealed air tight and apply a good oil base primer or vapor barrier paint to the sheet rock.

You dont say where you are or if it gets cold there. Id go for the foam or polystyrene on the walls. You did use P/T 1X6 I hope code would call for it. When done I still think a 4 mil poly over it all then the drywall.

My 02 cents Ed ;)

Thank you for the feedback. And yes I did use PT lumber. Termites had already had a field day with most of the studs in the house. So now... anything touching the concrete is treated.

:)