Technical Director

Vaclav Hasik is a Technical Director at Building Transparency, a non-profit organization behind the EC3 Tool, tallyLCA, and tallyCAT. Vaclav started with BT shortly after BT conception, working on methodology, data quality, and LCA research supporting all three tools. In 2025, Vaclav became the Technical Director, working on broader visioning and planning for the improvements across BT tools and partnerships, and focusing on successful technical implementation.

Vaclav was previously a sustainability analyst and Life Cycle Assessment (LCA) expert at Urban Fabrick, where he managed projects pursuing LEED certification and helped design teams address embodied carbon through whole-building LCAs. Vaclav also worked as a researcher at the University of Pittsburgh, where he was involved in university-wide carbon accounting, sustainability planning, and research on data and methods for LCA of buildings. He is an active member of the Carbon Leadership Forum and a founder of its San Francisco Bay Area hub.