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slab insulation

bill garnett_2
bill garnett_2 Member Posts: 21
in THE MAIN WALL
Fellas,

Do any of you have data on different types of slab insulation, which performed the best. ME I know a few yrs back you did a study-Thanks Big Bill

Comments

  • kcopp
    kcopp Member Posts: 4,463
    gee, for the money

    and performance the  extruded Blue board is really the only way to go. the bubble stuff is crap, Poly iso is really not rated for ground contact.

    Robert bean's site has for info on it... [url=http://www.healthyheating.com/Page%2055/Page_55_o_bldg_sys.htm]http://www.healthyheating.com/Page%2055/Page_55_o_bldg_sys.htm

    kpc
  • hot_rod
    hot_rod Member Posts: 23,185
    1-1/2- 2"

    of foamboard, don't forget the vapor barrier below to break the capillary action. i used Crete-Heat foam on a few jobs and really liked it. A bit more money to purchase but a labor saver and a nice tight tube spacing and hold down.



    hr
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Simply Rad
    Simply Rad Member Posts: 191
    One thought about the crete heat and other insulation/tubing systems

    In a perfect world the tubing should be in the middle of the slab.  There does not seem to be any chance of that with these type of products.  Now we all know the concrete animals are there to get the mud spread out and get outta there and to the next job.  But I have gotten some of them to try and pull the mesh and tubing up to the middle of the slab.  I wonder where it really ends up?



    Back to insulation, I think you can't beat 2" poly blue board. Make sure to get it around the edges too. 



    Jeffrey
    Jeffrey Campbell
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