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

Bob Waldrop bob at bobwaldrop.net
Wed Jul 18 21:17:44 EDT 2012


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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