Quote:
Originally Posted by mouse
Just a crazy thought: for a project of this dimension, the top could be made out of PTFE film, Tefzel [Dupont]or Hostaflon [Hoechst].
Tefzel used to be available in a form that had one edge with adhesive. See Eden Project, Cornwall, UK, visualize, longitudinal 'pillows'. Very good lightweight double-walled, high-insulation top requiring comparatively less structural support while shedding snow/wind/rain.
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PTFE can also be used for a lightweight half-hoophouse, 2 layers, inflated. Much, much lighter than plastic, high light transmission, strong. Worth a thought for future projects.
m
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Very interesting material. I haven't seen it being commomly used. Must be very expensive. I have gotten 4mm Twinwall poly panels for the project.
Can't wait until the snow melts so that I can complete the project.
thx
dcarch