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  1. #1
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    Default Insulation identification

    Please identify this insulation.

    Thank you Chip Roberson

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  2. #2
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    Default Re: Insulation identification

    Jerry Peck, Construction / Litigation Consultant
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  3. #3
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    Default Re: Insulation identification

    That looks like what is known as "Balsam wool / wool insulation".

    rick

    Last edited by Rick Hurst; 04-30-2009 at 05:55 PM. Reason: improper speeling

  4. #4
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    Default Re: Insulation identification

    Thank you all very much!!!

    Chip


  5. #5
    Randy Navarro's Avatar
    Randy Navarro Guest

    Default Re: Insulation identification

    In our neck of the woods it's called Rockwool.


  6. #6
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    Default Re: Insulation identification

    Nope, thats not Rockwool

    rick


  7. #7
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    Default Re: Insulation identification

    Quote Originally Posted by Randy Navarro View Post
    In our neck of the woods it's called Rockwool.
    Quote Originally Posted by Rick Hurst View Post
    Nope, thats not Rockwool

    rick
    Rick is correct, that is not rock wool.

    Rock wool is similar to fiberglass except that fiberglass is made from melted glass spun out into strands, whereas rock wool is made from rocks which are melted and spun into strands. Rock wool has a higher melting temperature than fiberglass.

    Both fiberglass and rock wool are considered "mineral insulation" as both are made from minerals.

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  8. #8
    Randy Navarro's Avatar
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    Default Re: Insulation identification

    Okey dokey.

    Balsam wool.


  9. #9
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    Default Re: Insulation identification

    Quote Originally Posted by Randy Navarro View Post
    Okey dokey.

    Balsam wool.
    Balsam wooD.

    However, I would not necessarily specify the the species of wooD used and would go with the other name Rick used: wood insulation, or, more specifically, 'wood fiber insulation'.

    That is that wood shavings as in 'saw dust' nor the wood shavings as in the old 'excelsior' I mentioned on the other thread - that stuff is curly shavings, like from planing or drilling.

    Those wood shavings are more like 'shredded wood'.

    I just would not identify the species of wood used unless you knew what species of wood was used.

    Jerry Peck, Construction / Litigation Consultant
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  10. #10
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    Default Re: Insulation identification

    Yes it IS called "Balsa wooL". Called "Balsa Batt" if it is/was encased in paper. Originally treated with hydrated lime to make it fire, insect, and rot resistant; later versions treated with borax or borites to make it resistant to insects, rot, and flame retardant. Treatment wears off over time if exposed to moisture (which is what the impregnated paper lining for the balsa batt was intended to prevent).

    The all-encompasing general term would be cellulose insulation (not just "paper pulp" it includes any cellulosic sourced material).

    Very common in pre 1930s construction in Northern areas. It didn't necessarily have to be made from Balsa Wood to be called that, became a generic term, whether made from cedar, hickory, balsa, etc. that it was shreaded or pounded and light weight (and saw dust in the balsa batt as well), like Kleenex (R) became generic for "facial tissue", "norge" was generic for refridgerator, Q-Tip (R) became generic for cotton swab, Baggie (R) became generic for clear poly bag for food storage, etc.

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    You'd more likely encounter asphalt impregnated fiber board in Florida - the fibers from pressed sugar canes, and other plant fibers. Offered some insulative value over the framing but little shear value - usually mesh overtop before stucco or clips into masonry. Heat and time make it very brittle and easy to break up.

    In California and the Pacific Northwest you may likely encounter Redwood fibers making up the majority of "balsa wool" or "balsa batt" like cellulose insulation.

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    Last edited by H.G. Watson, Sr.; 04-30-2009 at 04:49 PM.

  11. #11

    Default Re: Insulation identification

    Looks like "Chewbacca turds"! Better get the pest guy in there, a BIG one!

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  12. #12
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    Default Re: Insulation identification

    Yes, it is called balsa "wood" insulation.

    Alternative Insulation - Alternative insulation, fiber glass, green insulation, houses, homes

    Identifying Old Insulation

    There are many links to balsa wood being used for many types of insulating purposes and in many forms, with balsa wood insulation being just one of them.

    I also found the same references Watson found, however, there were but only a very few using the term balsa wool.

    Also, while balsa wood is the predominate wood used for insulation due to its light weight and thermal properties, other woods were used as they were locally available, thus, I still say I would 'not' call it "balsa" wood insulation ... it 'could be a different species of wood', so I would just call it 'wood fiber insulation', as I said above.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
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  13. #13
    Randy Navarro's Avatar
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    Default Re: Insulation identification

    Jerry, you're right. Good job.


  14. #14
    Bryan Frazer's Avatar
    Bryan Frazer Guest

    Default Re: Insulation identification

    Could it be coconut husks?


  15. #15
    K Robertson's Avatar
    K Robertson Guest

    Default Re: Insulation identification

    Quote Originally Posted by Randy Navarro View Post
    Jerry, you're right. Good job.
    Now you did it! Jerry won't be able to sleep for a week.


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