[Market-farming] spacing tunnels

Erik Lane eriklane at gmail.com
Sun May 20 18:29:22 EDT 2012


You can look at this page to see what kinds of angles you will get in
winter. http://solarelectricityhandbook.com/solar-angle-calculator.html
It should be about the same as us - we're just north of 45 latitude in
the Portland, Oregon area. Here we always say that the winter sun gets
down to 30 degrees, but that's an approximation it looks like. It
varies by month, of course. Then just calculate the angle and the
height of the tunnel to see how far away it needs to be.

Erik

On Sun, May 20, 2012 at 2:55 PM, Beth Spaugh <lists at rhomestead.com> wrote:
> We have lot line issues where I want to put a tunnel to serve as a wash
> station/packing shed, maybe spring greenhouse.  We are looking at gothic
> tunnels with 5 or 6 foot high walls (yes, need to find total height out for
> this question).  It will be due south of our current hoophouse (45 latitude,
> think Burlington VT but a little north).  Anyone know guidelines for how
> much space I need to leave in between so the current tunnel doesn’t get
> winter shade?  That distance will determine the width of the new tunnel.
> Thank you.
>
>
>
> Beth Spaugh
>
> Rehoboth Homestead, Peru NY
>
> http://rhomestead.com      http://www.facebook.com/rhomestead
>
>
>
> "How we eat determines, to a considerable extent, how the world is used." -
> Wendell Berry
>
> "Without power over our food, any notion of democracy is empty." - Frances
> Moore Lappe
>
>
>
>
>
>
>
>
> _______________________________________________
> Market-farming mailing list
> Market-farming at lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/market-farming
>
> Market Farming List Archives may be found here:
> http://lists.ibiblio.org/pipermail/market-farming/
> Unsubscribe from the list here (you will need to login in with your email
> address and password):
> http://lists.ibiblio.org/mailman/options/market-farming


More information about the Market-farming mailing list