We chose not to use foam forms for creating the stemwall, both because of price and because having foam on both sides of the concrete negated it's mass inside the greenhouse. Instead, we rented plywood forms to pour the cement into, which we removed after the cement hardened. We then placed 1 1/2 " rigid insulation around the exterior.
We also chose to have the stemwall extend six inches above the planned 2 1/2 ft planting
beds. Since ground level in the greenhouse was even with the bottom of the 7" footer, the stemwall ended up being 29" high. It is 8" thick. We ran 2- half inch horizontal pieces of rebar inside the wall attached to the 1/2 " uprights that were embedded in the footer, this is according to code. Aferward, we found that we liked the feel of standing 2 ft. below ground level in the greenhouse with the substantial stemwall surrounding us.
GOOD WORK! But does the FBI know that Jimmy Hoffa is in the barrel?
ReplyDeleteLooks like you guys are having a great adventure.