Design Strategies for Fire, Wind, & Hail
Tile Roofs as the Architectural Expression of Resilience
by Richard K. Olson, President & Technical Director, Tile Roofing Industry Alliance
(Editor’s Note: Richard K. Olson is president and technical director for the Tile Roofing Industry Alliance. The association represents industry professionals involved in the manufacturing and installation of concrete and clay tile roofs in the United States and Canada, and works with national, state, and local building officials to develop installation techniques, codes, and standards for better roofing systems. Olson can be reached at rolson@tileroofing.org.)
Across the West, architects and builders are redefining what it means to design for resilience. From coastal wind zones to wildfire-prone hillsides, the roof is no longer just a visual feature; it’s a critical component of performance, protection, and long-term sustainability. Clay and concrete roof tiles, long admired for their timeless beauty, are emerging as central to this new era of design resilience. Their combination of fire, wind, and impact resistance provides a rare intersection of architectural expression and proven durability.
In recent years, building design has had to evolve rapidly to respond to intensifying environmental hazards. Wildfires, hurricanes, and severe hail events have exposed vulnerabilities in conventional roofing systems. Insurance carriers and building officials are now setting higher standards for materials and assemblies that can withstand these threats while maintaining design integrity.
For architects, this shift represents both a challenge and an opportunity: to specify systems that meet aesthetic, structural, and resilience goals simultaneously. Tile roofing, particularly clay and concrete, has become a focal point in that conversation, offering a design solution that merges heritage with high performance.
Nowhere is the value of tile more evident than in the Wildland-Urban Interface (WUI). In wildfire zones, building codes increasingly emphasize noncombustible roofing materials. Clay and concrete tiles are inherently Class A fire-rated, meaning they do not burn or contribute to flame spread. All our Tile Roofing Industry (TRI) Alliance manufacturing members have performed testing in compliance for the Class A fire rated assemblies ensuring the full assembly can perform as required by the various codes. Properly detailed tile roofs, installed with closed eaves and ember-resistant vents, form an effective first line of defense in fire-prone regions when installed per manufacturers requirements.
Beyond their noncombustible nature, tile systems protect the roof deck by creating a secondary barrier through the airspace between tiles and underlayment. Embers that might ignite a shingle or wood shake roof are less likely to find fuel beneath a tile assembly. Architects designing for WUI compliance can therefore leverage tile not only for its fire resistance but also for its contribution to passive, layered protection, a defining principle of resilient design.
Wind events across the West and Southwest, from coastal storms to mountain gusts, place enormous uplift forces on steep-slope roofs. Tile systems have been rigorously tested to meet and exceed these pressures. Modern installation standards, developed and refined by the TRI Alliance, specify fastening patterns, battens, and adhesives designed to resist high-wind conditions. When properly installed, tile roofs can meet some of the highest wind uplift requirements in the building code, outperforming lighter materials which are more susceptible to damage or blow-off.
In hail-prone regions, concrete and certain clay tiles also demonstrate superior impact resistance compared to asphalt or metal. Many tile products achieve the highest Class 4 impact rating, which insurers recognize as a premium indicator of durability. The combination of strength and reparability makes tile an intelligent choice for architects designing homes expected to endure decades of environmental wear.
Resilient design is not only about the material; it’s about how the system is conceived and detailed. Tile roofing integrates beautifully into a variety of architectural forms, but performance depends on the designer’s understanding of slope, airflow, and drainage.
Steep slopes enhance water shedding and reduce the risk of intrusion, while well-detailed eaves, hips, and ridges help maintain structural integrity under wind loads. Incorporating above-sheathing ventilation (ASV), a hallmark of tile roof systems, provides measurable benefits for both energy efficiency and durability. By allowing air to circulate under the tiles, ASV moderates attic temperatures and reduces moisture buildup, which extends the life of underlayments and structural components.
Architects can enhance resilience by coordinating early with structural engineers and installers to ensure the roof assembly accounts for uplift loads, ventilation pathways, and thermal expansion. Properly designed tile roofs not only perform better but also create opportunities for expressive architectural form: deep shadows, texture, and rhythm that enhance curb appeal while delivering technical excellence.
One of the enduring strengths of clay and concrete tile is the ability to deliver design versatility without compromising performance. From contemporary profiles with clean lines to classic barrel and slate looks, tile enables architects to specify resilient roofs that complement any regional style or material palette.
Color and surface technology have advanced significantly, expanding both design freedom and functional performance. Reflective coatings and integral pigments enhance solar reflectance, supporting energy code compliance in hot climates. In cooler regions, darker hues help absorb solar gain, contributing to passive comfort strategies. The visual richness of tile, combined with these energy attributes, supports architecture that performs as beautifully as it looks.
A growing body of research underscores what many architects have long observed in practice: tile roofs contribute to thermal performance and occupant comfort. The TRECS study, sponsored by the TRI Alliance, is providing quantifiable evidence of how heat transfers through tile assemblies compared to other roofing materials. The study’s findings confirm that tile’s thermal mass and ventilated airspace significantly reduce heat flow into conditioned spaces, resulting in lower cooling loads and improved overall building performance.
These findings will hopefully influence how energy modeling tools and code agencies, such as the California Energy Commission, Department of Energy, evaluate steep-slope roofing. For architects, this means that specifying tile not only supports resilience objectives but also contributes to energy efficiency, sustainability certifications, and long-term cost savings for clients.
True resilience is inseparable from sustainability. Clay and concrete tile roofs routinely last 50 to 75 years or more, far exceeding the lifespan of most competing materials. This longevity reduces landfill waste, lowers life-cycle carbon impact, and aligns with design strategies that prioritize durability over replacement. Many tile manufacturers now incorporate recycled content, water reclamation, and energy-efficient production practices, further reducing environmental impact.
As Western communities confront the realities of wildfire, windstorms, and extreme weather, architects are leading the shift toward integrated resilience where material selection, system design, and aesthetics work together. Clay and concrete tile roofing exemplifies this philosophy. They embody the balance between tradition and technology, performance and beauty.
The future of architectural resilience will rely on materials that not only withstand environmental forces but also enrich the built landscape. Tile roofing, supported by research and modern engineering, offers a proven path forward, one where design excellence and disaster resistance are no longer competing goals but complementary outcomes.
In an era when resilience has become a core design principle, tile roofs stand as both an artistic and technical solution. They respond to the challenges of fire, wind, and hail without sacrificing elegance or expression. For architects, specifying tile roofing is not just a matter of durability, it is a design choice that communicates permanence, craftsmanship, and confidence in the face of a changing climate.
As building codes evolve and clients demand higher performance, the partnership between the design community and the tile roofing industry will continue to redefine the possibilities of resilient architecture, one roof at a time.
