[permaculture] Whitewash Bob's Roof Day plus Mapping/data site find story on white roofs impacts

Ben Martin Horst ben.martinhorst at gmail.com
Thu Jul 19 15:18:19 EDT 2012


I've only mixed and used a milk-based paint once, but then to good effect.
We painted a floor with it, which gets heavy traffic, then sealed it with
an oil and beeswax mix. It's proven very durable, and we're now on year 3.
We used a quark paint recipe out of a book whose title I no longer recall,
but there's a recipe here
http://www.appropedia.org/Curdled_milk_paint_recipe that looks pretty
similar to what we used.

On Wed, Jul 18, 2012 at 6:17 PM, Bob Waldrop <bob at bobwaldrop.net> wrote:

> This is interesting.  Do we want only the whey, or is the whole soured
> milk workable?  Or should I find some casein powder and add that? Do you
> also add water too, or is it strictly lime plus soured milk?
>
> I appreciate the tip.
>
> Bob Waldrop, OKC
>
> On 7/18/2012 6:14 PM, John D'hondt wrote:
> > Another version might be lime + milk (actually early cottage cheese, milk
> > gone sour that is releasing the whey. What you need is caseine) We have
> > found this very hard wearing and heavy-rain resistant as lime and water
> is
> > definitely not.
> > john
> >
> >>         We had several last-minute glitches we have not gotten this
> >> done. The first problems were rain, as we had an unusually wet June.
> >> Then we had a hard time actually finding hydrated (slaked) lime. None of
> >> the usual suspects I had access to (Lowes, Home Despot, Ace Hardware)
> >> stock it anymore.  I have now tracked down some (from a tack shop)  and
> >> will do a fence and then we will see about doing the roof.  I am doing
> >> the fence first to try out two or three different formulations for
> >> whitewash, as there are lots of recipes out there. I am going to try one
> >> version that is only lime and water, another with some salt added, a
> >> third with salt added plus letting it sit overnight before using it.  A
> >> chemist friend says that the effect of the added salt and letting it sit
> >> is to make it easier to apply, but the cost is some of the whiteness.
> >> So we will try a fence before we do the whole roof.
> >>
> >> Bob Waldrop, OKC
> >>
> >> On 7/18/2012 10:05 AM, Ken Morneault wrote:
> >>>
> >>> Hi Bob,
> >>>
> >>> Any feedback on the performance of the whitewash yet?
> >>>
> >>> Regards,
> >>>
> >>> Ken
> >>>
> >>>
> >>>
> >>> ________________________________
> >>>    From: Bob Waldrop <bwaldrop at cox.net>
> >>> To: ROE2 <runningonempty2 at yahoogroups.com>; permaculture
> >>> <permaculture at lists.ibiblio.org>
> >>> Sent: Friday, April 27, 2012 9:34 PM
> >>> Subject: [permaculture] Whitewash Bob's Roof Day plus Mapping/data site
> >>> find story on white roofs impacts
> >>>
> >>> Whitewash Bob’s Roof Day is coming up June 2, 2012, this is a free
> >>> workshop at my house in OKC, where we will whitewash my roof.
> >>>
> >>> For info on the benefits of white roofs, see . . .
> >>>
> >>>
> http://www.builditsolar.com/Projects/Cooling/WhiteRoofExperiment/WhiteRoof.htm
> >>>
> >>> For info on the whitewashing of roofs, a very cheap way to get a white
> >>> roof, see. . .
> >>>
> >>>
> http://www.theatlanticcities.com/design/2012/04/just-fraction-more-white-roofs-could-have-huge-global-impact/1764/
> >>>
> >>> There’s also a thread in the archives of this group from last year.
> >>>
> >>> Anyone in the neighborhood is welcome to stop by.  Let me know you’re
> >>> coming by email to bwaldrop at cox.net or by signing up with the FB
> event,
> >>> https://www.facebook.com/events/286135491467827/ .
> >>>
> >>> I am also participating in an experiment that will apply a non-toxic
> >>> coating after the whitewash has cured.  The goal is to extend the life
> of
> >>> the whitewash from 2-3 years to 8-9 years.
> >>>
> >>> A full report will be written and posted.
> >>>
> >>> Bob Waldrop, OKC
> >>> https://www.facebook.com/prairierosepermaculture
> >>>
> >>>
> >>>
> >>>
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