Best way to insulate between studs with rigid foam
gabb
14 years ago
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jake2007
14 years agogabb
14 years agoRelated Discussions
adding rigid foam insulation to inside walls
Comments (2)I would go with the 1.5" insul board and forget the strapping. It is more important to have a continuos run of insulation than the extra thickness and with the strapping every 24", there is NO insul board covering the wood at that point. Just mho....See MoreInsulating exterior walls with rigid foam
Comments (2)Hiring a competent licensed contractor to do the earthquake retrofit and other items that will be demanded of you during this permitted renovation would be the first order of business. He can guide you as to what would be the most cost effective approach. It won't be what you've indicated. Almost no return on the large amount of expense and labor to do what you're suggesting....See MoreNeed help with rigid foam and wall insulation
Comments (4)I definitely want to keep things simple. I was aware of the zipR shearing but I have heard it is typically cheaper to use regular zip board and a separate rigid foam. I don't like house wrap because I think 90% of the residential house wrap is not installed per manufacturers recommendations. I work commercial construction and have seen the tyvek required installation methods and rarely see that in the residential market here. I also thought I could save money and give me the piece of mind by taping the seams myself. I will look into the price difference on the zip sheathing and separate foam and the R-zip. Might be the way to go if it is minimal difference....See MoreRigid foam or spray foam for vented crawl space?
Comments (4)I'm not getting into the vented vs sealed crawlspace pro & cons. but to answer OP's question, 3.5 to 4' is sufficient working room for spray foam install. closed cell has a stronger smell than open cell IMO. but the smell fades after a couple of days with either. if you are anyone in the family are sensitive then install should be done when ample time is allowed for any smells to dissipate. I'd start by investigating the recommended install (joists covered or exposed). I'd think that 4" would be ample at R-28, but I don't know your requirements in your area. just remember that you have to meet the code minimums. R-value of foam into inches of foam. not "performs like R-xx" or "average fill" same depth or MORE...not less everywhere. No Q or K values, R-values only. it is the installer that is the key figure in the install, not the salesman. make sure you are on page with the installer & be willing to go into the crawlspace & measure low spots before they leave for the day. it is worth your time. and yes dehumidifier in vented crawl is trying to dehumidify a portion of the great outdoors. best of luck....See Morenerdyshopper
14 years agogabb
14 years agoenergy_rater_la
14 years agogabb
14 years agogabb
14 years agoenergy_rater_la
14 years agogabb
14 years agoenergy_rater_la
14 years ago
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