[papercreters] Re: Reciprocal roof

WARNING! NERD ALERT POST FOLLOWS!


I have not done the math to verify the accuracy of the following spreadsheet, so I make no guarantees to its accuracy. That said, at first (very rough) glance it appears to put out results that seem reasonable.

http://www.abrazohouse.org/wp-content/uploads/2008/11/reciprocal-roof.xls

Hope that helps at least get you started in the right direction.




What that spreadsheet won't do is give you diameters of your poles.

Calculating the diameter of your poles would involve reciprocal roof load calculations involving weight of every single other material included in completing the roof, timber strength calculations based upon which species of wood you would be using, grade of wood, span distances, roof pitch, wind and other live loads, and some other factors that are unknown at this time.


Having said all that, most reciprocal roofs get built in areas that do not have building codes, and are engineered by people that look at a log laying on the ground, maybe heft it to feel how heavy it is and make an extremely subjective ... "this ought to be big enough" judgement for themselves and just go with it.

Personally, I think doing load calculations makes sense, but then I kinda enjoy doing math, physics, statics, and geometry. The nerd factor in your genetic makeup probably varies from mine. (Probably makes you a lot more entertaining at parties too. My ability to do second class lever calculations far exceeds my 2nd class dancing ability.)


Warning #2: Anyone that got my lame joke and knew that reciprocal roof poles are simply a bunch of 2nd class levers leaning on each other is at extreme risk of being a 2nd class dancer. Probably should see your doctor and get yourself tested for nerdfluenza.



--- In papercreters@yahoogroups.com, Garth & Kim Travis <gartht@...> wrote:
>
> Greetings,
>
> I would love to hear from anyone that is interested in reciprocal roofs.
> I have read all the information I can find, which is not much. I am
> finding myself very challenged when trying to figure out what size poles
> I need for my place. The poles need to be ordered fairly soon, as they
> will take three weeks to get. They are cutting, debarking and kiln
> drying the poles just for me.
> --
> Bright Blessings,
> Garth & Kim Travis
> www.TheRoseColoredForest.com
> Bedias, Texas
>




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