Montana makes history as the first U.S. state to approve 3D printed alternatives to concrete walls

2022-08-31T17:51:00-04:00

Montana has become the first state in the nation to adopt broad-ranging regulatory approval for the use of 3D printing in construction.

The state’s building code regulators recently voted to approve local contractor Tim Stark’s request to 3D print walls as an equal replacement for either CMUs or standard cored concrete blocks.

Stark was petitioning to use the special wall prototype developed by the Florida-based construction technology company Apis Cor and later tested at the University of Connecticut’s School of Civil and Environmental Engineering, resulting in a specification that was published by the National Fire Protection Association (NFPA) in 2019.

Stark seeks to incorporate 3D printing into multiple housing developments in the hopes of expediting the construction process while at the same time reducing overal...

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Montana makes history as the first U.S. state to approve 3D printed alternatives to concrete walls