Montana is the first state to accept 3D printing of walls
Montana has become the first state to grant broad regulatory approval for the use of walls made by 3D printing, also known as additive manufacturing, in building construction.
Montana building regulators have approved 3D-printed walls as a replacement for walls fabricated using concrete masonry units (CMUs) or standard core concrete blocks. The approval was granted in response to a request from a housing contractor in Billings, the state’s largest city.
Tim Stark, who filed the application, will use Florida-based Apis Cor’s 3D printing system to complete a single-family housing project in the city.
“The need for safe, quality affordable housing is great throughout Montana, and this approval puts Montana at the forefront of innovative housing construction technologies nationwide,” said Laurie Esau, Commissioner of the Montana Labor and Industry, in a statement.
Apis Cor’s 3D-printed building construction system features a robotic pump and extruder that can build walls nine times faster than traditional construction methods while reducing costs by more than 30%, according to the website. of the company.
Building materials – a sand-cement mixture with additives such as geopolymers and gypsum – are fed into the extruder through a vacuum-sealed mobile silo.
Montana regulators reviewed data from the tests — submitted by Stark in its application — conducted by an independent third-party lab in Boston and at the University of Connecticut’s Civil and Environmental Engineering School. The National Fire Protection Association published specifications that were used as the basis for the Boston lab tests.
Satisfied that walls constructed with Apis Cor’s system and materials meet design, engineering, and fire safety standards set forth in Montana’s building code, state officials have given broad regulatory approval for their use in all constructs that follow the code.
Apis Cor, which has built several pilot projects in the United States and the United Arab Emirates, states on its website that its 3D printing system is the only one of its kind to comply with international building codes.
“Having this clear support from the State of Montana paves the way for faster decisions at the county level, which will make it easier for developers to move forward with their 3D printed housing projects,” said the CEO of Apis, Anna Cheniuntai, in a statement.
The company, founded in 2014, opened its first 3D-printed in-home showroom in Florida earlier this year and began offering publicly traded stocks in the United States through a regulation A+ offering sanctioned by the US. DRY.
Apis Cor is currently working on two projects to introduce affordable housing in Florida and North Carolina made using 3D printing. The company works with Struggle for Miami’s Affordable and Sustainable Housing, an organization known by its acronym SMASH, and Eden Village Wilmington.