Chosen for durability in windy locations and low up-front costs (and perhaps a little cool factor), the geodesic dome turned out to be a labour-intense work of love.
It all started with an intriguing Kijiji post involving a partial geodesic dome, hand-made out of galvanized steel conduit. While other second-hand steel greenhouse frames started around a grand, this was a fraction of the cost. A little research into the use of geodesic domes revealed that not only are they wonderful structures to spend time in, their shape encourages circulation thus preventing cold/hot spots from forming. The literature also warned of construction difficulties.
Well, the literature was right. After countless hours of labour and problem solving involving several hundred feet of galvanized 1/2″ steel conduit, a 20′ by 100′ roll of plastic, countless staples, heaps of scavenged 2×4′s, 40 wheelbarrows of soil, 12 buckets of gravel, a roll of steel fencing, 5 bicycle inner-tubes, one rain barrel, one used screen door and a beat up old fan… we have a wonderful seed starting space.
Here are some photos documenting the process: