"What may ultimately force the adoption of industrialized housing in the United States is a skilled labor shortage. This has already affected one area of home-building: roof trusses, the structural timber frameworks that support a roof. Trusses require precisely cutting angles, a skill few workers possess, and so the structures are now mostly made in factories."
https://www.nytimes.com/2024/06/08/headway/how-an-american-d...
"What may ultimately force the adoption of industrialized housing in the United States is a skilled labor shortage. This has already affected one area of home-building: roof trusses, the structural timber frameworks that support a roof. Trusses require precisely cutting angles, a skill few workers possess, and so the structures are now mostly made in factories."