Each wall is poured at a 5,000 psi with additional fibermesh reinforcement imbedded in the concrete. The concrete is only about 1 ¾” thick. The walls have a built-in footer beam, and do not require additional footers.
The walls rest on a crushed stone base, which assists with drainage. Each wall is custom poured at a local facility (our nearest one is in Ephrata, Pennsylvania) and delivered to the site. The walls are installed with a crane. Installation is about a day, if not less.
The “set crew” shows up early in the morning and checks the stakes set by the builder that indicate where the walls are to be placed and fine-tune the pins. Then, they tamp the stone areas on which the walls rest. Finally, the truck with the crane shows up, the walls are set, caulked and bolted by early afternoon.
Superior Walls are considered a green product for a variety of reasons, including, in this case, the proximity of fabrication to the site, the lack of waste in fabrication (since all are custom made and use less material but poured at a higher density than on-site poured concrete), the pre-existing insulation factor (ours are R-12.5 value), and the waterproof nature of the product.
Superior Walls has been identified as an approved concrete product in the Greenspec Directory for several years, which is a guidebook used by builders for green building products.