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Xi: X-tra Strength. X-tra Insulation.

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Xi Wall SectionProvided with more than double the insulation of the original R-5 Superior Wall system, the Xi has 2.5 inches of 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 2009 IECC and the 2009 IRC in most climate zones. 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 selective homeowners.