We have received a lot of questions about why our greenhouse footing was designed this way. In this video I will go through why we designed and installed a shallow insulated frost wall with 10ft. piles at 8ft centres.
For more information on our passive solar greenhouse course go to:
Passive solar greenhouse, Passive solar greenhouse design, Passive solar greenhouse construction,
0:36 An important tool on your farm
1:07 Why a rain gauge is so important
1:55 Greenhouse foundation question: Why did you build it this way?
2:23 Walls but no floor?
3:40 Subterranean heating and cooling system
3:56 Why put the soil in before framing the greenhouse?
4:40 3-4 feet below grade
4:48 Horizontal insulation around greenhouse
5:02 2×6 walls, close to R20
5:09 Tin sheeting
5:19 Polycarbonate glazing
5:22 16 mil three wall
5:27 vents and motorized roll-up doors
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About Rob Avis and Verge Permaculture:
In less than 10 years, Rob & Michelle Avis left Calgary’s oil fields and retooled his engineering career to help clients and students design integrated systems for shelter, energy, water, waste and food, all while supporting local economy and regenerating the land. He’s now leading the next wave of permaculture education, teaching career-changing professionals to become eco-entrepreneurs with successful regenerative businesses. Learn more and connect with Rob & Michelle at https://vergepermaculture.ca/
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