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Framing over basement blanket insulation
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I am considering finishing my basement. Current status: We live in Western Maryland in a 2 yr old home with a walkout basement. The foundation walls are poured concrete and the builder installed blanket insulation over these walls. It's figerglass with a white coating ( vapor barrier I think). The exterior of the basement was sprayed with a black sealent before they backfilled. The exposed foundation ( it's a walk-out) it finished with paint, and the insulation is on all walls, both those exposed and those beneath grade.

My question is about how to best frame out the walls. Should I stand off the new walls away from the existing insultion ( makes the room just a bit smaller? Remove the existing insulation and just reinsulation with kraft paper covered insulation ( hate to tera down exisitng blanket unless I need to 0? Push new framing tight to exisitng blanket, nail through, and just add more insulation?. I'm assuming PT wod for the sill and untreated for the remainder

Any guidance would be welcomed. I've gotten a few different opinions so far.

Mike
 
Posts: 1 | Registered: 11 March 2006Reply With QuoteReport This Post
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It would be fine either way. your not nailing trough it any way, frame a coventional wall system with bottom and top plate then if you feel the r value of existing insulation isnt great enough add more Tim; Rock Creek contractor service inc.
 
Posts: 9 | Registered: 29 March 2006Reply With QuoteReport This Post
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Hi Mike

Did you find any answer to your query. I have exact sam situation and would like to know what is best under these circumstances. I have read the new findings regarding vapor barrier and the recomendation is not to use it. My house is new and the basement is half finished. The part that the builder finished it, did not use a vapor barrier. That part is offcourse framed first and then batts installed.
This means we should cut the plastic sheet off of the insualation and frame right on top of it as you suggested by pressing it against the blanket.

Let me now what you found out about it.
 
Posts: 2 | Registered: 14 October 2006Reply With QuoteReport This Post
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quote:
Originally posted by justcurious:
Hi Mike

Did you find any answer to your query. I have exact sam situation and would like to know what is best under these circumstances. I have read the new findings regarding vapor barrier and the recomendation is not to use it. My house is new and the basement is half finished. The part that the builder finished it, did not use a vapor barrier. That part is offcourse framed first and then batts installed.
This means we should cut the plastic sheet off of the insualation and frame right on top of it as you suggested by pressing it against the blanket.

Let me now what you found out about it.
 
Posts: 1 | Registered: 27 December 2006Reply With QuoteReport This Post
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