(Valley Forge, Pa.) – A leader in foundation products, CertainTeed Corporation, has made an investment in ARXX to further develop the growing market for ARXX’s innovative Apex Block(TM), a naturally insulating cement-foam building material used for both above- and below-grade walls. Terms of the investment were not disclosed.

CertainTeed will market and sell this unique product under the company’s brand name and include it as part of its pioneering foundations product line.

Apex Block is an Insulated Concrete Form (ICF) building system made from 100 percent post-industrial/pre-consumer expanded polystyrene (EPS) and cement. Apex units are assembled like Lego(R) blocks and form a strong skeletal-type post & beam structure of reinforced concrete, capable of supporting multi-story structures.

“The Apex Block benefits contractors, architects, owners and occupants of both residential and commercial properties,” says Steve Gross, Director of Marketing for CertainTeed’s Foundation business. “Apex is a system that truly aligns with CertainTeed’s strategy to effectively promote innovative, green building materials.

The Apex Block has a four-hour fire resistance rating in accordance with ASTM E84-05, and is resistant to mold and mildew, as well as insect and termite infestation. Apex promotes healthy indoor air quality and boasts exceptional energy efficiency, saving owners and occupants of residential and commercial properties up to 50 percent on their energy bills. Contractors benefit by building more quickly and efficiently with less materials and waste, and architects are better able to balance weather resistance, energy efficiency, and eye-appealing beauty into their creative visions.