We planned the dome to capture geo-thermal heat, energy efficiency had to be part of the equation. Digging into the hillside made berming the dome faster and easier, between the burying of the dome and the polyurethane foam the plan was easy affordable heating. This excavation grew to twice this size before foundation work began. We worked to achieve a balance between maximum efficiency and leaving nature undisturbed.
Watching the giant digger prepare the site was amazing, hiring an operator that really knows how to use this machine saves money in the long run. The first operator I hired was young and inexperienced, save yourself unnecessary expense and negotiate with the areas best. We were able to dig a hole 12′ deep in the bank before starting the foundation, for an area with lots of granite bedrock this was fantastic. Once your foundation hole is prepared you will need a geological assessment of the underlining soil.
I hired a builder to prepare the foundation, the advantage of hiring a local builder is his established relationships with the building trades. Once the foundation was complete we were ready as home owner builders to take on the metal framing. With power wired in we were ready to begin. Thanks to sculptor Bob’s extensive experience we had a materials list to work from and could order what we needed and have it delivered. A crane truck was required to deliver and unload the re-bar.