26/10/2021
The vast majority of newly built single-family homes in the U.S. are constructed on-site and framed in wood using traditional construction methods.
Icon’s 3-D printed houses use concrete framing instead. Its 15.5-foot-tall printers can build the exterior and interior wall system for a 2,000-square-foot, one-story house in a week, Mr. Ballard said. The printer squeezes out concrete in layers, like toothpaste out of a tube. The machines can print curved walls, allowing for more creative house designs, he added.
Lennar is teaming with a Texas startup to create a community of 100 3-D printed homes near Austin, gearing up for what would be by far the biggest development of this type of housing in the U.S.