Expert: Resilience Trumps Efficiency
Building science expert Dr. Joe Lstiburek warns that the industry's focus on efficiency often comes at the expense of resilience. He argues that ignoring risks from fires, floods, and contaminants puts lives at risk, and that a safety-first approach to building science is critical.
Dr. Lstiburek's core argument stems from the physics of moisture. Highly insulated, energy-efficient buildings reduce the potential for drying. Materials that used to shed moisture now trap it, leading to mold, rot, and compromised structural integrity, turning a well-sealed envelope into a liability if not managed. His "perfect wall" concept places control layers for water, air, vapor, and heat on the exterior of the structure. This keeps the building's structural elements within the conditioned space, protecting them from temperature fluctuations and moisture that can lead to expansion, corrosion, and decay. The financial case for resilience is compelling. Studies by the National Institute of Building Sciences show that for every $1 invested in hazard mitigation and resilient infrastructure, there are savings of $4 to $6 in future disaster costs. In some cases, building to modern resilient codes can yield an $11 return for every extra dollar spent. This shift from "least-first-cost" construction is critical as climate-related disasters cost the global economy over $320 billion in 2024 alone. Proactive, resilient design is increasingly viewed not as an added expense but as a strategic investment to avoid staggering recovery and rebuilding costs. Top firms are integrating this thinking at scale. Gensler's "Resilience by Design" initiative focuses on data-driven design and urban regeneration to create adaptive and restorative spaces. Their 2024 design portfolio is projected to avoid emitting 19.6 billion kilograms of CO2e through energy demand reduction. Similarly, SOM emphasizes sustainable engineering and climate risk assessment in all projects, from the Burj Khalifa to large-scale urban planning. HOK has committed to a carbon-neutral design portfolio by 2030 and is developing a dedicated toolkit to guide resilient and climate-adaptive design. For residential and commercial properties, programs like FORTIFIED provide a clear framework for resilience. Developed by the Insurance Institute for Business and Home Safety (IBHS), these beyond-code standards strengthen roofs, windows, and structural connections, and can increase a home's resale value by up to 7%.
