May 10, 2021 Continue Reading A survey of 300 builders found that more are interested in increasing their use of off-site construction practices within the next five years, such as roof trusses and factory-built open wall panels. Home Innovation Research Labs conducted the survey in two rounds: once in August 2019 and then again in September 2020. In 2019, results found builders are most interested in using pre-manufactured roof trusses and pre-cut framing packages, with 15% of respondents and 12% interested, respectively. Second wave results found 23% of respondents were interested in using pre-made roof trusses and 16% were interested in pre-cut framing, turn-key framing, and factory-built open wall panels.