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Dear Buzz Burrell,
I invite you to look at the solaroof technology for
northern climates which you can find at www.solaroofgarden.com by clicking on
the "north" link. You will probably like to visit the "DL Insulation" page as
well. These pages show a horizontal roof construction for
larger-scale buildings that specifies a "pole" type of structure, using
columns and open web joists to form a frame that can carry a snow load. The
cover material is strong re-inforced film laminates that have good too high
transparency.
For smaller hobby greenhouses refer to the "green
house" navigation link to take you to a page that illustrates a design suited to
smaller structures where the snow load can shed to the ground. This is a
modified A-frame or tunnel structure that uses bent "hoop" framing members to
support the interior film and cavity space air-pressure to support the exterior
film-layer of the roof cover.
The Dynamic Liquid systems bring a revolutionary
efficiency to the operation of these new solar greenhouse designs. I would be
pleased to answer any questions you have and assist you to use these new
innovations in your demonstration project. This is the purpose of
solaroofgarden.com - to povide knowhow for DIY projects and build a GrassRoots
program to share experience through a global internet based collabortive
movement.
BUILDING a sustainable future - Richard
Nelson
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