University of Maine Unveils the First 100% Bio-Based 3-D Printed Home

The University of Maine Advanced Structures and Composite Center (ASCC) on Monday (11-21-22) unveiled BioHome3D, the first 3D-printed house made entirely with bio-based materials. BioHome3D was developed with funding from the US Department of Energy’s Hub and Spoke program between UMaine and the Oak Ridge National Laboratory. Other partners included Maine Housing and the Maine Technology Institute.

The 600-square-foot prototype features 3D-printed floors, walls, and roof of wood fiber and bio-resins. The house is fully recyclable and highly insulated with 100% wood insulation and customizable R-values. Construction waste was nearly eliminated due to the precision printing process.

The 3-D technology is designed to address labor shortages and supply chain issues that are driving high costs and constricting the supply of affordable housing. Less time is required on-site building and fitting up the home due to the use of automated manufacturing and off-site production. Printing using abundant, renewable, locally sourced wood fiber feedstock reduces dependence on a constrained supply chain. These materials support the revitalization of local forest product industries and are more resilient to global supply chain disruptions and labor shortages.