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What is the Knee Wall on a Passive Solar Greenhouse?

2,723 views · Published 4 October 2018 · 2:44 · Indexed 4 November 2026

Channel: VergePermaculture · 2018 · Education

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In this video I will discuss the importance of a knee wall in the design of a passive solar greenhouse. The kneewall lifts the front vent wall and when you add it to the height of the vent wall sets the front height of the greenhouse which is important from an ergonomics perspective. The knee wall also allows space for snow to accumulate in the winter ensuring that the vents can operate without obstruction.

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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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