Quote:
Originally Posted by siege2050
Are you going to brace up the center in a few places?
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Thanks for the reply, you bring up some good thoughts.
I'm hoping this tunnel will put out enough heat that I won't have to brace the spine. I have around 12,000 gallons of water in there that I'll probably keep up around 70F this winter, and all of that heat should keep the roof pretty clear. I have a pool broom that's ~12' long that I use to clear snow off of my tunnels, but I usually only need to use it on my fig tunnel, since it has far less water and therefore gives off much less heat per square foot than my aquaponics tunnel or the tunnel I build over my pond every winter.
I was worried about the wind when I first started building my tunnels 4 or 5 years ago, so I built them with robustness in mind, and they've cruised through a dozen wind events in the 70-80 MPH range. We've had windows blown in on our house and trees blown over, but the tunnels have never had any problems.