[Cob] Coblist Digest, Vol 15, Issue 34

[Jill]

Just a word of warning Pine Resin is colophony one of the major causes 
of contact dermetitus.. I would never be able to walk on it, my skin 
splits open horribly and it takes months to clear. Turpentine is also a 
source of colophony.




On 2017/09/01 7:51 PM, Barbara Roemer wrote:
> Hi Bill,
>
> We had an earthen floor in our bathroom under a heat lamp.  I doubt the
> floor ever got as warm as it would with radiant heating, though.  We used
> Bioshield Hard Oil #9.  That oil is primarily linseed & tung, although it
> does contain drying agents, such as zircon and cobalt, albeit lead free.
> It also contains a pine resin.  You might want to check into it rather than
> straight (or cut) linseed oil.  I went to Bioshield #9 after I had a
> stickiness problem with straight linseed.  I offer cautions as follows.
> u
> While it would seem that a pine resin is completely innocuous, being a
> "natural" product, it is hydrocarbons from pine pitch that combine with
> ozone from Sacramento to bring really nasty air here in the foothills.
> While the metal driers are lead free, cobalt is still a heavy metal.  Hard
> Oil #9 is billed as breathable and elastic.  It worked beautifully for us
> in a bathroom, although for about a week after the floor has been oiled,
> the smell is pretty strong.  After that, it dissipates entirely.  Water
> beads up on it and doesn't soak in.
>
> Although we have a base of at least two feet of gravel beneath the earthen
> floor, last winter was so wet that outside moisture moving into the drier
> floor was trapped beneath the hard oil, and we ended up with a lot of
> mold.  So, breathable?  I'm not so sure what that means.  Waterproof? maybe.
>
> So, if you have excellent drainage (as in a very effective curtain drain),
> and you use a product like #9 which has hardeners and driers in it, you
> would probably be fine running hydronic except for the week or two after
> you re-oil the floor.  I would definitely not use linseed alone, even if
> you opt for a floor that's stabilized with ~ 10% cement.  You would really
> want to experiment with a lime floor: we did and were still unsuccessful.
> We have a lime cement floor in our current bathroom and anything heavier
> than a toothbrush dents it.  Looks beautiful, but chipped: I"m going to
> eventually remove it and use stained concrete. BTW, we do have hydronic
> heat at the edge of the lime cement floor, and that works great.  The floor
> heats up for about 3' beyond the sink where the hydronic unit is installed
> in the toe space on the vanity.
>
> Regards,
>
> Barbara Roemer
>
> On Fri, Sep 1, 2017 at 10:00 AM, <coblist-request at deatech.com> wrote:
>
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>> Today's Topics:
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>>     1. Hydronic Heating of Earthen Floor (Bill Wright)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Fri, 1 Sep 2017 08:51:27 -0700
>> From: Bill Wright <bill at auburnacupuncture.net>
>> To: coblist at deatech.com
>> Subject: [Cob] Hydronic Heating of Earthen Floor
>> Message-ID:
>>          <083DA134-D9B3-4EBF-8FCD-89D3C1F56006 at auburnacupuncture.net>
>> Content-Type: text/plain;       charset=us-ascii
>>
>> Greetings,
>> I'm prepping for the install of an Earthen Floor in my building. I have
>> been planning on installing the tubing as well to heat the floor for
>> hydronic radiant heating. I've received a couple unsettling accounts around
>> the negative impact of hydronic heating systems in Earthen floors,
>> including the following:
>>
>> A local Natural Home builder experienced with Earthen Floor installation
>> was sharing some insights about hydronic heated systems in earth floors and
>> how they effect the oil finish.
>>
>> He mentioned that when the earth heats up, the placidity factor of earth
>> increases because of the linseed oil. He shared that the oil becomes tacky
>> when heated to the point where he no longer turns on the floor heat because
>> the floor surface gets too sticky and ruined his rugs.
>>
>> I had not heard of this happening before, but seems worth investigating.
>> I'm not sure if there is an additive that can be used in the linseed oil
>> that helps it stay stable when heated? Might the addition of Portland
>> cement, or lime into the Earthen Floor help with its properties when heated?
>>
>> BTW, for my install I'm following the procedures and protocols for a,
>> "compacted gravel (road base) subfloor", as outlined on pp. 109-112 in the
>> book: "Earthen Floors - A Modern Approach to an Ancient Practice" by Sukita
>> Reay Crimmel
>> And James Thomson Copyright 2014 by New Society Publishers. Though the
>> system of the install is really tangential to the issue of how hydronic
>> heating affects the finish surface of these types of floors.
>>
>> Many thanks!
>> BIll
>>
>> Bill Wright, L.Ac., DNBAO
>> Wright Acupuncture and Massage
>> 251 Auburn Ravine Rd., Ste. #205
>> Auburn, CA 95603
>> Schedule Online! Go to. . .
>> www.auburnacupuncture.net
>> 530-886-8927
>> "Qi is not a thing. . .
>> It flowers out of our love-affair with life."
>>
>>
>>
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>> End of Coblist Digest, Vol 15, Issue 34
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