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  1. #1
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    Default INSULATION VAPOR BARRIER TO WARM SIDE

    HEY ALL

    just did a 1895 remodel that had radiant heat installed under all upper floors. when i went to basement there was this insulation with wording--VAPOR BARRIER TO WARM SIDE OF HOUSE. as you can see vapor barrier to floor--with radiant heat pipes above insulation. seller showed up and said insulation was installed correctly. i just walk away and said nothing.

    the writing on barrier says warm side and it should be covered.

    by the way zero permits pulled on anything in house

    what do you think

    cvf

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  2. #2
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    sorry other pictures of radiant system

    cvf

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  3. #3
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Quote Originally Posted by CHARLIE VAN FLEET View Post
    HEY ALL

    just did a 1895 remodel that had radiant heat installed under all upper floors. when i went to basement there was this insulation with wording--VAPOR BARRIER TO WARM SIDE OF HOUSE. as you can see vapor barrier to floor--with radiant heat pipes above insulation. seller showed up and said insulation was installed correctly. i just walk away and said nothing.

    the writing on barrier says warm side and it should be covered.

    by the way zero permits pulled on anything in house

    what do you think

    cvf
    It also says somewhere on the Kraft paper facing that it is a fire hazard to have it exposed! Turn the insulation over so the paper is not exposed.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  4. #4
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Quote Originally Posted by CHARLIE VAN FLEET View Post
    just did a 1895 remodel ...
    Hmmmm, the insulation says it was manufactured in 2009 ...

    As Scott says:
    It also says somewhere on the Kraft paper facing that it is a fire hazard to have it exposed! Turn the insulation over so the paper is not exposed.
    But also (in addition to turning it over) make sure the insulation's is installed up in contact with the underside of the subfloor above.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  5. #5
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    JP

    house was redone all over--and no permits pulled--great. the insulation is installed over the radiant heat tubes in second picture and above the insulation is the radiant heat panels-so only place to secure would be staples on floor joists--but it needs to be turned over and that is what i thought and you and scott answered. don't you just love flippers

    cvf


  6. #6
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Quote Originally Posted by CHARLIE VAN FLEET View Post
    JP

    house was redone all over--and no permits pulled--great. the insulation is installed over the radiant heat tubes in second picture and above the insulation is the radiant heat panels-so only place to secure would be staples on floor joists--but it needs to be turned over and that is what i thought and you and scott answered. don't you just love flippers

    cvf
    Nonetheless, though, the insulation needs to be raised up when it is turned over and installed such that the facing is in contact with (in this case the radiant heat panels) above the insulation.

    Leaving the insulation down and not in contact with the material above the insulation is no different than leaving the insulation installed downside up (upside down for some ) as both will allow a fire to race across the exposed facing. All the 'in contact with' the building material above does is place the facing 'in contact with' a material which will not allow a fire to burn across the facing, the material the facing is in contact with will snuff the fire out (so to speak).

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    I don't see any bleeder valves on the heating loops.

    Steven Turetsky, UID #16000002314
    homeinspectionsnewyork.com
    eifsinspectionsnewyork.com

  8. #8
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    STEVE

    this is a new system to me--did see some bleeders--but told client--get a hvac person in here to test system and teach teach him how to operate--i've seen many radiat systems--but this one is a first

    cvf


  9. #9
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Normally, with in floor heating the insulation has a foil vapor barrier, so it can help to reflect the heat back up. Was it a staple up system or embedded in gypcrete? I agree with you on the vapor barrier issue, and would call it out. We all know how much stock to put in what the seller says about it.

    Jim Robinson
    New Mexico, USA

  10. #10
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    Chicago, IL
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Quote Originally Posted by CHARLIE VAN FLEET View Post
    H

    what do you think
    WRT fire hazards and reversed vapor barriers, you are welcome to reference (for use in reports) and/or link to:

    Paper and foil faced insulation fire hazards / reversed vapor barriers FAQ - Paragon Home Inspections Chicago / Skokie ' Evanston IL

    Michael Thomas
    Paragon Property Services Inc., Chicago IL
    http://paragoninspects.com

  11. #11
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    Sep 2009
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    Rolla, MO
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    Charlie

    I has a house with the insulation upside down that trapped moisture between the insulation and sub-floor causing a mold issue. The insulation in this house had been in place for several years so your house may look like this in a few years.

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    Residential Engineering & Inspection Services
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  12. #12
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    Default Re: INSULATION VAPOR BARRIER TO WARM SIDE

    MICHAEL

    great link will use it

    thanks

    cvf


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