Out of the Woods: Perceived versus Experienced Drivers and Barriers to Multistorey Timber Construction in Belgium

Abstract

Multistorey timber construction (MTC) offers a more sustainable architectural alternative to mineral building, but its adoption in Belgium lags. This paper investigates the hypothesis that a limited knowhow on timber construction is a significant barrier to MTC implementation. This study surveys construction professionals with varying experience levels in timber construction to compare perceived challenges between novices and those involved in completed mid-rise timber projects. The research combined literature review, quantitative surveys, and focus groups with timber construction training. Findings reveal that while all participants recognized sustainability benefits, perceived barriers varied significantly by experience level. Technical expertise availability and traditional mineral construction practices were commonly cited challenges. Experienced professionals, except contractors, cited profitability concerns, while novices emphasized building costs and technical limitations, particularly regarding fire performance and durability. The study highlights the need for targeted education, policy changes, and promotion of best practices to address these perceived barriers and facilitate broader adoption of mass timber construction.