Products – Xi Wall
The Xi is our newest and most advanced wall. Provided with more than double the insulation, the Xi has 2.5 inches of continuous DOW ® Styrofoam for 
superior warmth and energy efficiency. Nearly everything is insulated in the Xi, including corners, studs, and bond beams. Special engineering makes the wall thermally isolated and insulated from the exterior elements. The new wall is monolithically poured (poured all at once) with high-strength concrete for solid structural integrity, and reinforced with steel rebar and polypropylene fibers.
The Xi wall’s special high strength, low-water concrete mix also requires no additional damp proofing, benefiting from technology developed for the original R-5. And the Xi meets or exceeds energy conservation requirements from both the IECC and the IRC in most climates. The Xi has a striking modern look before drywall installation, due to the galvanized steel stud facings that have replaced treated wood nailers. The high-tech engineering and numerous advanced features of the Xi make it the foundation of the future, and the only choice for discriminating homeowners.
Each Xi Wall is custom manufactured and designed, complete with built-in openings for windows and doors. Superior Walls also feature easy conversion to finished living space. In addition to being pre-insulated, the walls have smart stud facings for easy drywall insulation and pre-engineered access for wiring or small plumbing. As always, factory precast technology allows Xi builders to continue installing custom foundations in virtually any weather. Weaver Northeast builder customers are able to build in even the coldest weather when competitors are forced to suspend operations
Ui Wall
The Ui Wall is an uninsulated, four-foot high precast concrete foundation that is designed for use under residential construction garages and porches.
The wall is L-shaped which creates stability. It is 10-1/4-inches wide at the bottom and four-inches wide at the top. They are best applied in parts of the home that do not require insulation and will not be accessed, such as an unconditioned crawl space or below a garage or porch.
The Ui Wall is a low-cost alternative to poured concrete or concrete blocks. When used in conjunction with the Xi or R-5 wall panels, the entire foundation can be installed in less than a day.