Building Code Council committee reviews bill to adopt Appendix BM for 3‑D printed residential construction

House Bill 1029 would ask the State Building Code Council to adopt Appendix BM of the International Residential Code for 3‑D printed residential building construction in the 2024 code cycle and bring those provisions into the main code by the 2027 cycle, committee members heard.

The bill "is asking the SBCC for the 2024 code cycle to adopt a appendix BM in the residential building code for a 3 d printed building construction," Roger Haringa, BFRW committee chair, said during the council's legislative update. He added that the appendix would make the technology easier for local jurisdictions to permit and that the bill also asked that the provisions move from an appendix into the main code in 2027 so jurisdictions can rely on an established standard.

Why it matters: The conversation centers on how to integrate an emerging construction method into Washington’s code framework while…