Revalidates performance and compliance of precast wall assembly featuring C-GRID carbon fiber grid connector and rigid foam insulation
CarbonCast High Performance Insulated Wall Panels, manufactured by AltusGroup precasters in North America, have had their evaluation report (ESR#2953) renewed by ICC Evaluation Service (ICC-ES), reaffirming that the CarbonCast wall panels meet code requirements.

CarbonCast High Performance Insulated Wall Panels with C-GRID shear truss connectors and rigid foam insulation were tested in accordance with ICC-ES Acceptance Criteria AC-422. The accepted report, ESR#2953, was published first by ICC-ES in February 2014 and has been renewed yearly.
Building officials, architects, contractors, specifiers, and designers utilize ICC-ES Evaluation Reports to provide a basis for using or approving products in construction projects under various ICC building codes. Many municipalities and building jurisdictions require an ICC-ESR certification before allowing use of a structural building product in their area.
ICC-ES has thoroughly examined AltusGroup’s product information, test reports, calculations, quality control methods and other factors to ensure the product is code-compliant. Testing for much of the ICC-ES criteria was completed in the accredited laboratory facilities of the University of Miami, Fla., as well as at the Constructed Facilities Laboratory of North Carolina State University, Raleigh, N.C., along with prior research and testing performed at other independent laboratories and agencies. Dozens of precast sandwich test samples were submitted by AltusGroup precasters nationwide to verify the performance of the C-GRID connector and assembly across the group’s North American manufacturing base in satisfaction of the AC-422 criteria pioneered by the AltusGroup and ICC.
In collaboration with C-GRID composite reinforcement producer partner Chomarat NA, Anderson, S.C., the most recent report included additional testing to address carbon fiber, epoxy, supply chain and durability performance confirmation tests of the grid. According to John Carson, Executive Director for AltusGroup, Inc. and its precast partner members in North America, the criteria and testing “remains the most significant of any wythe composite connector in the market today.”
About AltusGroup
The first-ever national partnership of precast companies dedicated to “innovation powered by collaboration,” AltusGroup challenges the brightest minds in precast to develop, speed and perfect technologies that improve the built environment. Technology platforms include the award-winning CarbonCast® line of products featuring C-GRID carbon fiber grid reinforcing with additional innovations in the pipeline. The 14 AltusGroup North American precasters have an unparalleled network of manufacturing plants, technical staff and sales personnel to ensure architects, engineers and contractors get the help they need—and the quality and performance they expect. For more information, visit altusprecast.com or call 866-GO-ALTUS.
About ICC-ES
With over 90 years of experience and thousands of reports, ICC Evaluation Service (ICC-ES) is the industry leader in performing technical evaluations of building products, materials and systems for code compliance. Due to its diligence and unparalleled engineering experience, ICC-ES is the most widely accepted evaluation agency in the nation. Agencies use evaluation reports to help determine code compliance and enforce building regulations; manufacturers use reports as evidence that their products (and this is especially important if the products are new and innovative) meet code requirements and warrant regulatory approval. ICC-ES evaluation reports are public documents, available free of charge online, not only to building regulators and manufacturers, but also to contractors, specifiers, architects, engineers, and anyone else with an interest in the building industry.
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