In this episode of Building Better with Elizabeth Halden, I sit down with Thomas Reinhardt to peel back the layers—literally—of the modern Passive House. While we often celebrate these structures as the "gold standard" of energy efficiency for their ability to maintain perfect thermal comfort with near-zero input, we must address a sobering question: Is our quest for the ultimate airtight seal creating a hidden fire safety nightmare?

We dive deep into the "submersible" analogy—the idea that a vessel designed to keep a hostile environment out is equally capable of trapping dangerous elements in. Our discussion navigates the complex intersection of high-performance building science and emergency response, covering:

The Fuel Load of Efficiency: Why common high-R-value insulators like expanded polystyrene (EPS) and extruded polystyrene (XPS) are essentially solid hydrocarbons that can accelerate flame spread within wall cavities.

The "500-Pound Door" Phenomenon: How extreme airtightness leads to rapid overpressure during a fire, potentially trapping occupants by making exit doors nearly impossible to open.

The Smoke Trap: Why the lack of natural infiltration in Passive Houses changes fire dynamics, leading to lethal spikes in carbon monoxide and near-zero visibility in seconds.

The Ventilation Conflict: The risks of mechanical systems (ERVs/HRVs) inadvertently distributing toxic smoke throughout a home before detection.

The SAFR Framework: A path forward using the "Sustainable and Fire Resilient" philosophy to integrate NFPA standards—like NFPA 285 for facades and NFPA 13 for suppressions—at the earliest stages of architectural design.

Whether you are an architect, a code official, or a homeowner, this episode is a crucial look at why a building isn't truly sustainable if it isn't also resilient.

In this episode, we explore why Smiljan Radić has been awarded the 2026 Pritzker Prize and what his work reveals about the evolving values of contemporary architecture. Rooted in landscape, material, and imagination, his projects challenge conventional ideas of form, permanence, and authorship—offering a quieter, more introspective vision of the built environment.

We also open a critical debate: is Radić pointing toward a more meaningful and context-driven future for architecture, or does his work remain an outlier in a profession shaped by scale, economics, and global demand? A conversation on relevance, sustainability, and the power of restraint.

Planning a new build, renovation, or small apartment project? The difference between the International Residential Code (IRC) and the International Building Code (IBC) can be the difference between a smooth permitting process and a complete, six-figure budget disaster.

In this deep dive, Elizabeth Haldencuts through the bureaucratic fog and reveals why calling the IBC the 'commercial code' is dangerously wrong.

Key Takeaways You Can't Afford to Miss:

The IRC Recipe vs. The IBC Standard: Learn the fundamental difference between the prescriptive, clear directions of the IRC and the performance-based, engineer-heavy requirements of the IBC.

The Four-Point Test: We break down the four critical criteria that determine if your project qualifies for the simpler IRC—and the three common triggers (height, density, and mixed-use) that automatically push you into the IBC.

The Costly Shift: Discover how jumping to the IBC immediately requires fire-rated structural materials, specialized safety systems like sprinklers, and higher engineering costs that change the DNA of your entire build.

Get the clarity you need to budget accurately and ensure your project’s safety from day one. This is essential listening for any builder, architect, or homeowner.

From structure to sustainability, this episode unpacks the biggest shifts between the 2021 and 2024 International Residential Code. Riley Carter explains how updates to ASCE 7-22, ASCE 24-22, and the 2024 IECC reshape design decisions, inspections, and resilience in modern housing.

Discover what these refinements mean for architects, builders, and homeowners aiming to build smarter, safer, and more efficient homes.architecture

Join us as we dive deep into the principles of sustainable architecture, exploring how buildings can act as ecological membranes rather than mere boundaries. In this episode, we'll discuss the crucial role of the building envelope, the hidden impact of embodied carbon in materials, and the power of the Integrated Design Process. Discover how architects, engineers, and ecologists collaborate to create structures that perform thermally, structurally, and ethically. Get ready to rethink how we build for a greener future!

In this kickoff to Season 2 of Building Better with Elizabeth Halden we explore the layered relationship between iconic architecture and the urban systems that give cities their soul. Dr. Riley Carter takes us from theory to practice—examining how buildings and neighborhoods shape resilience, equity, and climate adaptation in a rapidly changing world.

Whether you’re shaping the built environment or navigating it daily, this episode is a compass for those working at the intersection of form, function, and future cities.

In this episode, we dive into the world of modular construction through the lens of Passive House standards. Discover the best materials shaping the future of prefab homes—from CLT and SIPs to hempcrete, VIPs, and beyond. Riley Carter breaks down how material choices impact energy performance, cost-efficiency, and code compliance in modular design. Whether you're an architect, builder, or policy advocate, this episode delivers actionable insights on building homes that are not only faster and cheaper to construct—but smarter and more sustainable for decades to come.

In this premiere episode of Building Better with Elizabeth Halden, we journey through the engineering brilliance of Rome’s Pantheon Dome—an architectural marvel that continues to inspire designers, builders, and sustainability advocates alike. Drawing from Riley Carter’s 2025 book The Pantheon Dome: Rome’s Engineering Masterpiece and Its Legacy in Architecture and Innovation, we explore how Roman concrete, symbolic geometry, and project management under Hadrian still echo in today’s high-performance building practices. Whether you’re an architect, engineer, student, or history lover, this podcast connects ancient wisdom with the tools of modern sustainable design.

What can a 15th-century dome teach us about modern architecture? Quite a lot, it turns out. In this episode of Building Better with Elizabeth Halden, we explore the extraordinary story behind Brunelleschi’s Dome—a feat of engineering that solved one of the greatest structural challenges of the Renaissance. Discover how a goldsmith-turned-architect designed the world’s largest masonry dome without scaffolding, invented new machines, and laid the foundation for centuries of innovation. From double-shell construction to herringbone brickwork, we unpack the techniques and leadership strategies that still resonate with today’s architects and builders striving for resilience, efficiency, and beauty. A masterclass in turning constraints into creativity.

This week on Building Better with Elizabeth Halden, we strip structural design down to its essentials. From load paths to lateral resistance, Riley explains how a strong grasp of structural behavior transforms architectural decision-making. You'll hear why understanding equilibrium, materials, and framing systems isn't just for engineers—and how spatial reasoning and real-world examples can elevate your next project. Whether you're designing a backyard ADU or a multi-story passive house, this episode is your blueprint for structural clarity and confidence.