[Cob] Eco Roofing Material

[Howard Switzer]

I concur with John's recommendations ....and metal will last a very long
time if you take good care of it. If you want to do potable water
collection make sure it is 'galvalume' without paint. John mentions
insulation and I was curious about your strategy for that as well.

On Wed, Oct 1, 2014 at 12:10 PM, john fordice <otherfish at comcast.net> wrote:

> Hi Bill,
> I'm thinking a corrugated metal roof set on sleepers elevated above your
> structural roof, with bug screened vented eaves and ridge.  The idea being
> to create a venting area between the metal roof and the wood structure.
> This venting will reduce heat build up in the roof.   While metal is not so
> green/Eco, the fire issue is the biggie.  Further I'd consider keeping the
> roof projection framing to the sleeper system only & adding a one hour
> protection to the edge of your main 2x6 rafter framing at the exterior of
> your walls - reduce combustability of the eaves as much as you can …… again
> as a fire protection.  Assuming you will have ample roof insulation too.
> Careful furring of the sleeper system will plane out the roof and make
> installing the metal roofing a slam dunk.
>
> john fordice
>
> On Oct 1, 2014, at 8:07 AM, Bill Wright, L.Ac., DNBAO wrote:
>
> >
> >
> > Hi Everyone,
> >
> > I sent out this email, "Any suggestions for
> > green/Eco roofing material?"
> >
> > Adam Weismann Responded, "In what
> > context?" Great question Adam! Thank you!
> >
> > To which I will add:
> >
> > I'm
> > building a simple gable end round wood timber framed structure w/
> > bale-cob walls, and a South facing Cob, "solar wall". It has a 8:12
> > Pitched roof. We live in foothills of the Sierra Nevada Mountains in
> > Northern California at approximately 2500 feet. We live mostly below the
> > snow line, although we can expect a few days of snow each year. The most
> > snow I've seen at one time is 6-8"; though I wouldn't want to bet on how
> > the climate will show up in our current trajectory. Our biggest
> > climactic issue is brush fires, and local building codes dictate fire
> > resistant roofing materials, so thatch is out.
> >
> > The building is
> > designed with passive solar in mind, so it has quite a bit of solar
> > exposure. That means I would like a roofing material that won't cause
> > considerable heat gain in the heat of our long, dry, hot summers.
> >
> > The
> > roofing substrate is 5/8" thick OSB Plywood fastened to 2x6" Doug Fir
> > lumber. However, the 2x6" framing is fastened to round wood timber
> > framed rafters, giving the roof some undulation - dips and humps as the
> > roof transits from gable end to gable end; from ridge to eve the roof
> > planes pretty straight and flat.
> >
> > That's about all the context I can
> > think to add in the moment.
> >
> > This moment is a gift. Enjoy...
> >
> > Bill
> >
> >
> > --
> >
> > Bill Wright, L.Ac., DNBAO
> >
> > Wright Acupuncture and Massage
> >
> > 251
> > Auburn Ravine Rd., Ste. # 205
> >
> > Auburn, CA 95603
> >
> > 530-886-8927
> >
> >
> > http://www.auburnacupuncture.net
> >
> > This e-mail and any attachment is a
> > private communication and may be confidential and/or legally privileged.
> > If you are not the intended recipient, do not read, copy, use it or
> > disclose it to others. Please notify the sender of the delivery error
> > and then delete it and any attachments from your system. Thank you.
> >
> >
> > On Tue, 30 Sep 2014 07:32:07 +0100, Adam Weismann wrote:
> >
> >> Hi Bill
> >>
> >
> >> In what context?
> >>
> >> Thanks
> >>
> >> On 30/09/2014 04:58, Bill Wright
> > L.Ac. wrote:
> >>
> >>> Hi,
> >>> Any suggestions for green/Eco roofing
> > material?
> >>> Thanks,
> >>> Bill
> >>>
> >>> Sent from my iPhone
> >>
> >> --
> >>
> >>
> > ADAM WEISMANN - Director
> >> [1]
> >> www.clay-works.com [2]
> >> 01326 341
> > 339
> >> 0778 978 0391
> >
> >
> > Links:
> > ------
> > [1] http://www.clay-works.com
> > [2]
> > http://www.clay-works.com
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>
>
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-- 
Howard Switzer - Architect
668 Hurricane Creek Road
Linden, TN 37096
931 589 6513
www.earthandstraw.com

“You never change things by fighting the existing reality.
To change something, build a new model that makes the existing model
obsolete.”
― Richard Buckminster Fuller
<http://www.goodreads.com/author/show/165737.Richard_Buckminster_Fuller>