Comments on: If I use foam insulation in the exterior walls do I need a vapor barrier? http://insulationmaterials.info/if-i-use-foam-insulation-in-the-exterior-walls-do-i-need-a-vapor-barrier.html Tue, 27 Jul 2010 07:35:56 +0000 http://wordpress.org/?v=2.8.6 hourly 1 By: Matthew W. http://insulationmaterials.info/if-i-use-foam-insulation-in-the-exterior-walls-do-i-need-a-vapor-barrier.html/comment-page-1#comment-1044 Matthew W. Mon, 03 May 2010 18:17:59 +0000 http://insulationmaterials.info/if-i-use-foam-insulation-in-the-exterior-walls-do-i-need-a-vapor-barrier.html#comment-1044 I want to add insulation to existing exterior walls. Adding a moisture barrier is not an option because it will be injected or blown in depending on type. Will lack of a moisture barrier be more of a problem with one type of insulation as opposed to another? My preference is to use an organic foam. I live in temperate San Francisco. Thank you I want to add insulation to existing exterior walls. Adding a moisture barrier is not an option because it will be injected or blown in depending on type. Will lack of a moisture barrier be more of a problem with one type of insulation as opposed to another? My preference is to use an organic foam. I live in temperate San Francisco.

Thank you

]]> By: Michelle S http://insulationmaterials.info/if-i-use-foam-insulation-in-the-exterior-walls-do-i-need-a-vapor-barrier.html/comment-page-1#comment-158 Michelle S Fri, 21 Aug 2009 17:21:11 +0000 http://insulationmaterials.info/if-i-use-foam-insulation-in-the-exterior-walls-do-i-need-a-vapor-barrier.html#comment-158 Yes you should because of possible condensation. Wherever warmth from inside meets cold air from the outside you should use the vapor barrier. Especially in your basement. Yes you should because of possible condensation. Wherever warmth from inside meets cold air from the outside you should use the vapor barrier. Especially in your basement.

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