2025 BES Presenters and Authors

Andrey Ardashev has over 15 years of experience in enclosure consulting, with a focus on commercial and residential roofing applications, including commercial low-slope, all-type roofing systems, as well as all-type, steep-slope roofing systems. Ardashev is proficient in all phases of roofing and facade assessment, design, and investigative and forensic work focused on water intrusion construction, and he uses Non-Destructive Test tools for the assessment and verification of roofing assemblies and facade cladding, including IR thermography and relevant ASTM testing.

Jeff Armstrong has designed and built energy efficient buildings since his days as a carpenter in the late 1970s. With degrees in architecture from Toronto Metropolitan University and McGill University, Armstrong has been a leading-edge designer, builder, and teacher for over 30 years, including 13 years as a builder-trainer for CMHC International. His construction firm, DAC International Inc., exported prefabricated, high-performance buildings to the Canadian Arctic, Japan, the UK, Ireland, and the US. Armstrong now heads Cold Climate Building Inc., a firm specializing in deep energy retrofits and northern housing.

Adam Broderick is a research and design scientist with DuPont Performance Building Solutions focused on applying material science and building science fundamentals to drive innovative building enclosure products and applications. He is on the front lines of developing and testing the newest technologies available to enable easier construction of higher performing, more resilient buildings. Despite having a background in formulating and evaluating products in the lab, he’s happiest when on a building site, collecting feedback on new products and application methods under development, and learning about the most challenging unsolved problems facing builders today as they can become the innovations of tomorrow.

Clayton Brown joined the structural engineering division of SGH in 2014. He is licensed as a Professional Engineer (PE) in Massachusetts and is experienced in structural investigation/assessment, design, repair, rehabilitation, and construction administration of historic and contemporary structures. Brown has been involved in a wide variety of construction projects, including those in which the structure of the building is also the enclosure, such as mass masonry. He is routinely collaborating with architects, owners, and contractors on complex building designs and repairs.

Mark Carver is a research and design project lead at CanmetENERGY, Natural Resources Canada and a member of the buildings and renewables group. He leads NRCan’s Prefabricated Exterior Energy Retrofit (PEER) project. His research interests include net-zero energy and passive homes and building enclosures, prefabrication, climate resilient buildings, and low-carbon design and construction. Mr. Carver is passionate about making high-performance design, construction, and renovation mainstream. He and his family put a heritage home in Ottawa’s Lebreton Flats neighborhood through the deep retrofit wringer. They recently moved to the suburbs and have even more ambitious plans to retrofit their 1970s bungalow to near net-zero.

Working as a technical specialist and project engineer for Built Environments, Mathew Congleton draws upon years of experience in the disaster response industry as an insurance adjuster, loss consultant, and damage appraiser. After personally witnessing the aftermath of catastrophic weather events such as hurricanes, tornados, floods, and wildfires, he understands the vulnerabilities inherent in building structures and the need for resilient design. This firsthand experience, coupled with a degree in construction management, and certifications such as the Insurance Institute for Business & Home Safety Fortified Evaluator designation, has equipped him with a detailed grasp of building science principles.

Jarrett Davis has been involved with evolving and facilitating the change of the built environment around the globe, while maintaining the attitude required for high performance construction, design, and execution. Often found speaking to trade associations, Architects and Engineers, and frequently lecturing to college classrooms on the Building Sciences and construction measures. He has been engaged by product manufacturers to develop extensive R&D, testing, and installation manual procedures and systems for acceptance in the construction industry. But you can usually find him in the air teaching his kids how to fly and understanding physics at work.

Steven Doggett is the founder of Built Environments Inc., a building science research firm with a special focus on resilient enclosure systems. His practice draws from extensive experience with building enclosure failures, particularly those involving air, heat, and moisture transport. He merges this expertise with durable design practices, novel test methods, and advanced simulation techniques. Doggett’s primary work centers on research and development of high-performance building products. He is actively engaged in product evaluation, testing and failure analysis, and development of innovative building materials.

Hitesh Doshi, professor, Toronto Metropolitan University, in the department of architectural science, has over 35 years of educating and training professionals in building science. A professional engineer, he has 40 years of experience practicing building science, with a focus on performance of building enclosure systems. In recent years he has contributed to knowledge on rooftop systems such as urban farms, green roofs, and blue roofs. He has also been involved in advocacy work through regulatory warranty and builder authorities.

Luke Geoffrion has a PhD in applied physics from the University of Arkansas at Little Rock, where he studied thermodynamics and the processing of nanomaterials, and where he published 10 scientific journal articles. During his tenure at Siplast, he was responsible for developing WALLcontrol, Terapro, and roofing adhesives. He enjoys playing video games and hiking with his wife and five pets.

John Graz has 30 years of experience with architectural investigations, design, and restoration of building enclosures. Projects range from historic preservation to new construction peer review and design assistance. He uses his extensive background in project management and as a team facilitator to assess, design, and provide construction administration of roof, facade, and plaza projects.

Jonnie Hasan, MEng (Sustainable Smart Cities), PE, BECxP, CxA+BE, has more than 25 years of experience in commercial construction, design-build, and cladding. He holds a structural engineering PE, Six Sigma green belt, and Building Envelope Commissioning and Project Management certification. In his position with IMETCO, he has held various roles, including building enclosure designer, WUFI analyst, manufacturing engineer, and director of building envelope products. He strives to guide clients to the most cost-effective and efficient product selection and application. He is a registered professional engineer with numerous patents related to building cladding systems and design. Hasan is an active member of ASTM, BEC (local chapter), PCI, ACI, ABAA, and ASCE.

Jennifer Hogan is passionate about building sciences and energy performance. She has been a building science consultant for over 17 years and uses her experience and knowledge to help clients achieve their energy and carbon goals as the leader of the Energy and Carbon Reduction team at Pretium. A lifelong learner, Hogan has dedicated herself to furthering her craft by obtaining numerous industry certifications. If you asked what her favorite thing is about her career, she would tell you that it is being able to share her love of the built environment with others.

Amy Huynh is a building science engineer and project manager for Stantec. She has worked on a variety of projects, including building enclosure consulting, building rehabilitation projects, building enclosure commissioning, and building condition assessments. Huynh also has an interest in energy modeling, with experience in 3D finite element analysis thermal modeling. Her approach supports the delivery of high-performing, resilient building systems.

Alex Kosis has extensive experience as a building enclosure consultant, specializing in roofing and waterproofing system design and repair and in thermal analysis for optimal building performance. He leads Simpson Gumpertz & Heger’s (SGH) building technology presence in the US Mountain Region, working with clients and project partners to solve technical challenges on a range of new design, failure investigation, and repair and rehabilitation projects. He brings wide-ranging expertise and insights to his technical work gathered from his practice as a senior engineer and project lead in Denver, Colorado; the San Francisco Bay Area; Southern California; and Washington, DC.

Richard Krock is a principal with VyChlor Advisors LLC, a consulting company he formed in 2022 to assist manufacturers, recyclers, suppliers, and trade associations in advancing their positions in the vinyl value chain. He retired as senior vice president for regulatory and technical affairs at the Vinyl Institute and has worked in the PVC industry for 37 years. He joined the Vinyl Institute in 2009 to advocate for the industry’s regulatory positions and technical matters and advance its sustainability. A registered professional engineer, Krock holds a bachelor of science in chemical engineering and an MBA from Marshall University.

Mike Lopez has extensive building enclosure consulting and construction administration experience, specializing in exterior restoration, waterproofing, roofing, and leak remediation. As a Registered Architect in the states of Rhode Island, New York, Texas, Louisiana, and Florida, Lopez has the unique ability to provide both technical and aesthetic perspectives for any project and has been a part of numerous historic projects involving the New York City Landmarks Preservation Commission. He is also a member of the American Institute of Architects and holds a National Council for Architectural Registration Boards (NCARB) Certificate.

Aria Mascall is currently a graduate facade engineer at Buro Happold in Los Angeles, California. She recently graduated with honors as the valedictorian of her class in the department of civil and architectural engineering, receiving a bachelor of science in architectural engineering and a minor in sustainable built environments from the University of Arizona. Stemming from her childhood in Powell Butte, Oregon, her passion for innovative and critical design fosters a disposition for resilient and sustainable developmental practices. Studying location-advantageous design theory allowed her connection to wilderness to flourish and deepened her desire for time spent with Mother Nature.

Brian Mathus is a licensed architect at Klein & Hoffman in Chicago, Illinois, and an alumnus of the University of Illinois – Urbana Champaign (UIUC) Master of Architecture program. He provides building enclosure commissioning, consulting, and investigative services for healthcare, industrial, and residential buildings throughout Chicago and the Midwest. Mathus began his career in the field of enclosure restoration, and he applies this experience to the construction of new buildings.

Allison McSherry specializes in building enclosure commissioning, consulting, and investigation along with energy modeling of building enclosures. She has shared her energy modeling and energy code expertise with architects, engineers, code officials, and contractors through a variety of certified continuing education courses and webinars, including developing and delivering three courses with the Illinois Building Industry Training and Education (BITE) program serving more than 600 industry professionals. In addition, she has performed LEED energy modeling, LEED facilitation, retrocommissioning investigations, THERM, and EPAct 179D energy modeling and analysis.

Benjamin Meyer serves as building enclosure business director for Siplast. He also serves as chair of the ASHRAE 90.1 Envelope Committee, director of the Air Barrier Association of America (ABAA), past member at large on the NIBS BETEC board, past LEED Technical Committee member, and past technical advisor of the LEED Materials (MR) TAG.

Luke Niezelski is a Professional Engineer (PE) licensed in Massachusetts and has been with Simpson Gumpertz & Heger Inc. (SGH) in the building technology division since 2014. With a comprehensive background in the investigation, assessment, design, and field-testing of both historic and modern building enclosure systems, Niezelski plays an integral role in a variety of construction projects across the Boston area. His expertise spans construction administration, monitoring, inspection, and collaboration with architects, owners, and contractors to tackle complex building enclosure challenges.

Since founding O’Riley Office, Dan O’Riley leads all projects in the office. With more than 25 years of experience, he specializes in leading architectural design, with multidisciplinary teams working on programmatically complex projects. As an advocate for collaborative design, he works closely with clients to cultivate strong, meaningful relationships on each project. Prior to founding O’Riley Office, he spent 10 years working for the Chicago, Illinois, office of Skidmore, Owings and Merrill LLP, where he was a studio head. There, he oversaw a 30-person “office within an office” focused on domestic, complex, program-driven, institutional projects, such as hospitals, research laboratories, and university buildings.

Jennifer Oblock is an account executive at Thomas Associates Inc., a trade association management company headquartered in Cleveland, Ohio. Since 2013, she has been immersed in association duties, working closely with associations of all sizes. She represents the Chemical Fabrics and Film Association (CFFA), where she serves as its executive director. Oblock’s experience covers the full range of association activities, including all aspects of project and meeting management, and she serves as the principal liaison to association directors and officers. She holds a bachelor of arts degree in business with a concentration in marketing from Mercyhurst University.

Hamish Pope is an advanced building envelope specialist at Natural Resources Canada, where he works on Canmet’s building envelope research projects. His research is on improving industry confidence in novel, high-performance building envelope assemblies and prefabricated approaches to rapid retrofit. Additionally, his research focuses on requirements for industrialized retrofits and on existing and novel low-carbon building materials.

Mr. Jeff Reitsma is vice president and practice lead of 30FE’s Construction group, with nearly 25 years of experience in the engineering consulting and construction industries. Reitsma specializes in leadership of multidisciplinary forensic investigations and post-loss remediation projects nationwide and has led design and construction teams for some of the biggest engineering firms in North America. He has overseen municipal capital infrastructure projects from conception to completion and has designed and directed indoor air quality, catastrophic loss response, and fire and flood impact remediation projects. He is an ODACC-registered adjudicator supporting dispute resolution under the Construction Act in Ontario.

Matthew Ridgway is a licensed architectural engineer specializing in the assessment, managing projects, design, analysis, and remediation of building enclosure systems on historic and modern buildings. for both public and private clients. He is well-versed in the contemporary analysis and issues of building enclosure design, serviceability, materials selection, and enclosure commissioning, and he often moderates discussions between stakeholders, consultants, and local code/historic authorities. His investigative and forensic work has focused on water intrusion, building instrumentation, and condensation analysis for both modern and historic roofing, waterproofing, fenestration, and opaque walls, as well as on manufacturing defects of prefabricated systems.

Claire Tam is a building science consultant specializing in building enclosure component modelling and performance analysis at Stantec. She applies her architecture and building science background and passion for high-performance enclosure detailing to evaluate building performance and sustainable design strategies. She is adept at using multiple simulation tools for 2-D and 3-D thermal, hygrothermal, whole-building energy, and Passive House design.

Joel Stanley, founder and CEO, is the inventor of the U-Anchor and all its rooftop securement solutions. With a rich family history in the roofing industry and decades of experience in the commercial roofing sector, he has been awarded 26 patents. His down-to-earth approach and inventive nature have revolutionized rooftop equipment securement. He believes in educating the industry on current and future rooftop solutions.

Brian Whelan is a consultant for the Chemical Fabric and Film Association Vinyl Roofing Division. Employed as an executive for an international construction chemical company overseeing its commercial roofing manufacturing business for over four decades and, more recently, its resinous flooring business. After retiring, he founded Roof Resources LLC. Whelan is a graduate of Harvard University Business School’s PMD Program and has a degree in architectural technology. He has served on the RCI/IIBEC Foundation Board of Directors and has been a member of IIBEC since 1989. Whelan has written numerous articles that have been published in IIBEC’s Interface. Whelan is a co-inventor in over 10 patents related to roofing and waterproofing.

Rachel Will, PE, is a principal and executive director of knowledge sharing with Wiss, Janney, Elstner Associates Inc. in Chicago, Illinois. She has nearly 20 years of experience related to the investigation and repair of historic building facades. She has performed numerous evaluations, prepared repair documents, and provided construction period observations for many historic masonry (stone, brick, and terra cotta) facades as a part of adaptive reuse projects. She has authored multiple articles and given numerous presentations related to masonry, adaptive reuse, and historic preservation.

Kasia (Katarzyna) Wodzisz is currently a graduate facade consultant at Buro Happold. She is a recent graduate of the Illinois Institute of Technology, with a bachelor of architecture (B.ARCH) and master of tall buildings and vertical urbanism (MTBVU). Growing up in a rural setting, Wodzisz has a passion for architecture and a deep appreciation for integrating nature within built environments. Born in Poland and raised in Chicago, Illinois, she has nurtured a profound fascination for skyscrapers and their urban impact. Beyond facades and the built environment, she relishes the mental stimulation of puzzles.

Rick Ziegler is a principal at Stantec with specialized expertise in the design and rehabilitation of building enclosure systems. His work encompasses building assessments, forensic investigations, facade and roof design, specification development, and construction administration. Ziegler has a collaborative approach, working closely with project teams to guide assembly design, system selection, and performance evaluation.