Design and Construction of Permanent Wood Foundations – The Buildings Show 2025
Course Overview This session will provide requirements and guidance on the design and construction of permanent wood foundations (PWF) based on the Canadian standard; CSA S406-16 – ‘Specification of permanent wood foundations for housing and small buildings’. Further information on site selection, backfilling, PWF floor systems, air and vapour barriers, insulation techniques, crawl spaces and design requirements for high wind and seismic zones will be discussed. This session will provide attendees with an overview of the design requirements and construction methods for PWF, with a focus on the structural system and building science considerations. Learning Objectives Apply the design requirements of CSA S406-16 for permanent wood foundations in housing and small buildings. Identify key building-science considerations for PWF systems, including drainage, air and vapour control, insulation, and crawl space design. Evaluate site and structural requirements for permanent wood foundations in high wind and seismic regions. Course Video Speakers Bio Adam Robertson Co-founder and Principal Sustainatree Adam completed his Bachelor of Applied Science in Civil Engineering at the University of Toronto and also holds a Master of Applied Science degree from the Department of Wood Science at the University of British Columbia. He is the past Chair of the CSA Subcommittee on Permanent Wood Foundations and acted as a primary author and editor during the update and revisions to the Canadian Wood Council’s Permanent Wood Foundations publication. He is the co-founder and principal of Sustainatree Consulting, a small firm specializing in sustainability and engineering design of wood building systems. Prior to opening his own practice, Adam was previously employed by the Canadian Wood Council and has also worked as a consulting structural engineer and within the building development and construction management fields.
Construction Moisture Management of Mass Timber Buildings
Course Overview Mass timber buildings are transforming the way we build—but with new materials come new challenges. This session will explore how moisture risks in mass timber construction and how to take a proactive approach to moisture management. Participants will gain practical insights into effective protection strategies during the construction phase and learn how to develop a tailored moisture management plan to safeguard both the mass timber structure and project timelines. Learning Objectives Identify key moisture risks specific to mass timber construction and understand how they differ from traditional structural systems. Apply practical construction-phase moisture protection strategies that align with project sequencing, site conditions, and contractor workflows. Develop or evaluate a project-specific moisture management plan to protect mass timber elements, reduce delays, and ensure long-term durability. Course Video Speakers Bio David Stanton Associate, Senior Engineer – Building Enclosure RDH Building Science Inc. David is an Associate and Senior Building Science Engineer in RDH Building Science’s Toronto office. David’s exposure to mass timber projects started with the Brock Commons project in BC as a coop student and then with the Catalyst building in Spokane, WA—a 4-storey mass timber building for Eastern Washington University—when he started working full-time in the Building Science field. Since moving back to Toronto, David has continued to work on large scale mass timber projects, including the Lawson Center for Sustainability and the Academic Wood Tower projects at UofT. Sean Carroll Senior Superintendent Graham Construction Sean Carroll is a Senior Superintendent with Graham Construction, bringing over 32 years of experience across Canada, Europe, and the UK. A civil engineer and journeyman carpenter, Sean has led complex projects in the commercial, residential, pharmaceutical, and educational sectors—including several involving advanced Mass Timber construction. Over his 11 years with Graham, split between Alberta and Ontario, Sean has been at the forefront of integrating sustainable building methods, particularly in the use of engineered timber systems. He brings a deep understanding of Mass Timber coordination, sequencing, and tolerances, along with a strong commitment to safety, quality, and team leadership. Known for his hands-on approach and global perspective, Sean combines technical precision with a collaborative leadership style—driving successful project outcomes from concept through completion. Natasha Jeremic Manager, Codes and Standards – Sustainability Canadian Wood Council Natasha Jeremic is a Professional Engineer in the building industry, with a background in design, building performance, and project management. She is currently the Sustainability Manager for Codes and Standards at the Canadian Wood Council, where she leads strategic initiatives focused on low-carbon construction, energy efficiency, durability, and circularity. Natasha leverages her expertise in structural design, building envelope consulting, and whole life carbon accounting to showcase how wood products contribute to a sustainable, low-carbon built environment. She is passionate about raising awareness of wood’s role as a viable solution in advancing climate-conscious construction.
Halsa 230 Royal York: Ontario’s Tallest Mass Timber Residential Building
Course Overview Halsa 230 Royal York is setting new standards as Toronto’s pioneering 9-storey prefabricated mass timber rental building, demonstrating the viability of carbon-neutral communities within Toronto’s Right of Way zoning. Through a case study of the building, this session will present the advantages of integrated design and prefabricated mass timber building systems components. Learning Objectives Explain the integrated design and prefabrication strategies used in mass timber residential construction: Learners will be able to describe how collaborative design, advanced manufacturing, and prefabricated building systems contribute to project efficiency, quality, and scalability. Analyze the technical features and performance benefits of mass timber floor cassettes and curtain wall systems: Learners will understand the structural, acoustic, fire resistance, and thermal properties of the building’s mass timber components, and how these features address common challenges in high-rise construction. Evaluate the sustainability, regulatory, and operational considerations in developing carbon-neutral mass timber buildings: Learners will assess how material sourcing, certification, lifecycle carbon analysis, and code compliance shape the viability and impact of mass timber projects in urban environments. Course Video Speakers Bio Oliver Lang Co-Founder, Chief Product Officer, Intelligent City Co-Founder, Principal, LWPAC Oliver Lang is a German-Canadian architect and urban entrepreneur with 25+ years of experience and a recognized leader in design innovation and integration of complex urban projects, mixed-use housing, advanced prefabrication, and green building strategies. He is a graduate of Columbia University’s Graduate School of Architecture Planning and Preservation, with a Master of Science in Advanced Architectural Design, and he holds a professional degree (Diplom-Ingenieur Architektur) from the University of Technology Berlin with two-year studies at the ETSA Barcelona UPC. Prior to founding LWPAC in 1998, Oliver researched and practiced in digitally assisted design and fabrication with Smith-Miller & Hawkinson in New York, while teaching digital design at Princeton University, Columbia University, and University of Pennsylvania. He subsequently has taught advanced design and digital technology at SCI_ARC, the Berlage Institute, TU Berlin, UTF Santa Maria, and University of British Columbia (UBC). Shawn Keyes VP – Strategic Growth and Business Development Intelligent City Shawn is a structural engineer and commercial executive with more than a decade of experience leading innovation in mass timber and industrialized construction. As Vice President of Strategic Growth at Intelligent City, he leads commercialization, market strategy, and partnerships to scale the company’s prefabricated housing systems. Previously, Shawn served as Executive Director of WoodWorks BC, where he led a strategic transformation that strengthened partnerships, technical leadership, and influence across the development, AEC, and policy sectors. Before that, he spent over six years at Fast + Epp as a Senior Structural Engineer, developing deep technical expertise. Over his career, Shawn has supported more than 150 mass timber and hybrid projects across Canada, and has served on advisory councils for BC Housing, BCIT, the BC Office of Mass Timber Implementation, Forestry Innovation Investment, and Natural Resources Canada. He holds an MBA from UBC Sauder, a Master of Engineering from Carleton University, and is a licensed Professional Engineer in BC and Ontario.
The Future of Tall: The Future of Cities
Course Overview Over the past two decades, tall buildings have enjoyed a major uptake in almost all major cities globally. But is the push for greater urban density and taller buildings creating habitats and patterns of life that are truly sustainability, in terms of social, cultural and economic sustainability, as well as the carbon equation? Through examples from around the world, this session outlines areas where the typology, and cities, need to develop. Learning Objectives Understand the sustainability challenges and opportunities in tall building design: Explore how social, cultural, economic, and environmental factors influence the development of high-rise structures and urban density. Identify innovative strategies for integrating mass timber and other sustainable materials in tall buildings: Learn how material choices impact carbon reduction, energy efficiency, and structural performance in high-rise construction. Analyze global case studies to evaluate future trends in urban development and tall building typologies: Gain insights into design approaches that promote livable, resilient, and sustainable cities. Course Video Speakers Bio Dr. Antony Wood CEO Antony Wood Consulting Dr. Antony Wood is the former President of the Council on Tall Buildings and Urban Habitat (CTBUH), responsible for leading the Council’s thought leadership, research, and academic initiatives. Prior to this, he was CTBUH chief executive officer (CEO) from 2006-2022. During his sixteen-year tenure as CEO, CTBUH significantly increased its outputs and initiatives across all areas globally. Wood’s PhD dissertation explored the multi-disciplinary aspects of skybridge connections between tall buildings. He is associate editor of the CTBUH Journal and serves on the editorial board of several other journals. He is the author of numerous books and papers in the fields of tall buildings, sustainability, and related fields. Wood has been conference chair and chair of the scientific committee at all CTBUH conferences since 2006. He has also presented at numerous conferences, and lectures regularly around the world.
Design and Construction of Permanent Wood Foundations
Course Overview This course will provide guidance on the design and construction of permanent wood foundations (PWF) based on the Canadian standard CSA S406-16 – Specification of Permanent Wood Foundations for Housing and Small Buildings. Topics will include site selection, backfilling, PWF floor systems, air and vapour barriers, insulation techniques, crawl spaces, and design considerations for high wind and seismic zones. The course will give attendees a comprehensive overview of the structural and building science requirements for designing and constructing PWF systems. Learning Objectives History of PWF construction. Wood preservatives and material requirements for PWF. Overview of pertinent design and construction aspects of PWF. Standardization of PWF as per CSA S406.
Mass Timber Industrial Buildings and Warehouses
Course Overview The emerging use of mass timber in industrial buildings presents promising opportunities that are shaping the future of construction in this sector. As a sustainable and economically competitive alternative, mass timber is redefining what is possible in industrial construction, a field traditionally dominated by prefabricated steel. An analysis of two cutting-edge projects in Sudbury, Ontario, highlights key advantages, including cost competitiveness, reduced embodied carbon, and superior aesthetic appeal. The insights from these two projects present stakeholders with helpful considerations and valuable strategies for integrating mass timber into future developments. Learning Objectives Participants will learn how to create flexible, multi-tenant industrial layouts using mass timber systems that are able to accommodate evolving tenant needs. Participants will gain insight into how early-stage collaboration with mass timber suppliers streamlines design, engineering, and construction processes. Participants will gain insight into the role of mass timber in biophilic design, and how its visual warmth and natural materials contribute to wellness-centred spaces that appeal to tenants. Participants will understand how mass timber can be a cost-competitive alternative to steel, especially in volatile markets, and assess its impact on embodied carbon and sustainability goals. Course Video Speakers Bio Darian Sweeney, B.Sc., B.B.A Chief Operating Officer Bloomington Developments Born and raised in Greater Sudbury, Darian holds dual bachelor’s degrees from Laurentian University – in Biochemistry and Business Administration with a specialization in finance. In December of 2021, he joined Bloomington Developments, a real estate investor and developer in Greater Sudbury with a focus on commercial and industrial assets. While he has had the chance to apply his skills in capital budgeting, asset valuation, financial forecasting, and cost tracking in his time with Bloomington, his first major role with the company was unrelated to his educational background: overseeing the two concurrent mass timber building projects that are the subject of this seminar. Darian now manages all construction projects – whether new builds or renovations – and negotiates all leases across the company’s portfolio, in addition to his roles as primary liaison on legal, administrative, tenant relations, marketing, and business development matters. Patrick Danielson, OAA + AIBC, MRAIC Founder and Principal Danielson Architecture Office Inc. Patrick holds a degree in Biomedical Science and a graduate degree from the School of Architecture + Landscape Architecture at the University of British Columbia. Combining these disciplines, he developed a unique “genetic design” approach — an evolving architectural strategy informed by biological principles. Patrick has expanded this framework through academic research, patented innovations, private sector projects, biological studies, and his experience as a pilot.
Emerging Solutions for Mass Timber in Healthcare
Resource Description Healthcare buildings are among the most complex and resource-intensive structures we design and, increasingly, they are being asked to do more. Modern hospitals not only need to support healing for patients and staff, but also to contribute to planetary health by reducing carbon emissions and addressing social and environmental determinants of wellbeing. To meet these goals, hospital design must evolve beyond the “squeezed and standardized” approach that has long defined it. Mass timber is emerging as a credible alternative to conventional systems for larger-scale, high-rise institutional buildings. Recent advancements in material science, manufacturing, engineering, and fire safety have made it possible to consider timber as a structural solution for complex facilities — including hospitals. Recognizing that innovation in healthcare design must be evidence-based, this collaborative study explores the feasibility of using mass timber for a 200+ bed acute care hospital. The multidisciplinary team — including KPMB Architects, PHSA (Provincial Health Services Authority of BC), Fast + Epp, Smith + Andersen, Resource Planning Group, CHM Fire, Hanscomb, AMB Planning, and EllisDon — developed and evaluated a detailed test design for a mass timber inpatient tower suited to the Canadian context. The study examined structure, cost, schedule, lifecycle carbon, code compliance, infection control, and biophilic design as part of a holistic approach to sustainable healthcare infrastructure. Learning Objectives Identify the key drivers that influence structural system selection in healthcare building design. Describe the opportunities, limitations, and specific considerations associated with using mass timber in hospital environments. Summarize findings from an in-progress feasibility study for a mass timber inpatient tower in a Canadian acute care setting. Evaluate the comparative schedule, cost, and lifecycle carbon outcomes identified in the study, and discuss implications for future healthcare projects. Course Video Speakers Bio Chris McQuillan, OAA, AIBC, FRAIC LEED AP Principal KPMB Architects Chris McQuillan, a registered architect and a distinguished Fellow of the RAIC, brings three decades of experience in planning, design and construction for healthcare and biomedical research. He has completed work across Canada, southeast Asia and in the Caribbean. In the healthcare sphere, his experience includes acute, rehabilitation and mental health treatment. Recently, Chris has designed major additions to Burnaby Hospital and Michael Garron Hospital in Toronto, a major expansion of the Halifax Infirmary, a new regional hospital in Corner Brook Newfoundland, a provincial specialty hospital for addictions and mental health in St John’s and strategic planning for the phased renovation of Royal Columbian Hospital here in Vancouver. A resident of Toronto, but active across Canada and beyond, Chris joined KPMB Architects in 2024 to propel the growth of the firm’s work in the healthcare sector. Chris’ focus in the design of healthcare facilities is to create healing architecture – for people, for our cities and for the planet. Mass timber must come to be viewed as an indispensable tool to help us achieve that goal. Juan J. Cruz Martinez, M.Arch, M.Des, EDAC, LEED GA Senior Director, Major Capital Projects Provincial Health Services Authority Lisa Miller-Way, C.E.T., LET Director CHM Fire
Architectural Assemblies Simplified: Understanding Structural Grids: Acoustics and Envelopes in Wood Buildings
Course Overview This session will help you to formulate effective floor and wall assemblies when designing wood structures, both light wood frame and mass timber. Discussion will cover typical fire ratings and strategies, acoustic performance of different assemblies and effective strategies for weather-tight exterior envelopes. Background on typical structural assemblies for different grid sizes will help you understand how to effectively develop complete assemblies when designing timber buildings. Learning Objectives Participants will understand how to formulate effective floor and wall assemblies for wood structures, including both light wood frame and mass timber, to optimize performance and design efficiency. Participants will understand typical fire ratings and the acoustic performance of various assemblies and gain strategies to enhance the safety and comfort of wood buildings. Participants will learn how to design weather-tight, high-performance exterior envelopes for wood buildings. Participants will discover typical structural assemblies for different grid sizes and learn how to effectively develop complete assemblies when designing timber buildings. Course Video Speaker Bio Michael Wilkinson Principal and Senior Building Science Engineer RDH Michael Wilkinson is a Principal and Senior Building Science Engineer at RDH. He has provided consulting services across a range of building typologies with a focus on high performance and innovative building projects including those that are Passive House, mass timber, and volumetric modular. Michael has also been involved in numerous research projects including product development and performance monitoring and is the lead author of several guideline documents for government agencies and building enclosure product manufacturers. Additionally, Michael is a part-time instructor at the BC Institute of Technology where he teaches building science and construction technology classes. Derek Ratzlaff, P.Eng., Struct.Eng., PE Technical Director, WoodWorks BC Canadian Wood Council Derek began his career in the wood industry in high school working on single and multi-family light wood construction, after university and almost 20 years of structural consulting experience, Derek has worked in all types of wood construction and played key roles in the delivery of iconic BC wood structures, the Richmond Olympic Oval and Grandview Heights Aquatic Centre. He brings his experience in design and construction to support the industry as the Woodworks BC Technical Director.
Advancing North American Mass Timber Projects: Harnessing the Strength of Local Expertise
Course Overview As global adoption of mass timber construction accelerates, a growing number of solutions are available in the marketplace that can contribute to the success of your project. This session, presented by Simpson Strong-Tie, will explore some of the unique challenges faced by North American projects and some of the domestically developed solutions available to meet those challenges. Learning Objectives Understand the need for greater tolerance on concealed beam hangers, the importance of ensuring connectors are easy to install, and the specific requirements for large elements in North American buildings. Understand the advantages domestic suppliers can bring to your project, including the rapid delivery of hardware to job sites. Learn about the necessity for effective installation tools and processes tailored to the scale of large North American projects. Learn about the need for effective moisture mitigation and the systems and strategies that can prevent unnecessary exposure of mass timber to the elements during construction. Course Video Speaker Bio Adrian Mitchell Chair of Simpson’s internal Mass Timber Focus Market Committee Simpson Strong-Tie Adrian is a mass timber and off-site business specialist with a principal focus on the rapidly expanding mass timber segment, for which he serves as Chair of Simpson’s internal Mass Timber Focus Market Committee. Adrian has spent the bulk of his 20-year career in the off-site, mass timber, and modular spaces, primarily as a business development leader and private consultant. With professional experiences ranging from heavy civil, oil and gas, high-end custom homes to large-scale mass timber missed-use projects and artificial intelligence in BIM, he has a unique and well-rounded background in wood and steel applications in off-site construction. Adrian is a native of Vancouver, Canada, and a graduate of the British Columbia Institute of Technology’s School of Business, he enjoys all the typical Canadian pastimes like playing hockey, building things from wood, and mountain biking.
A Zero Carbon Hybrid Wood Supertall Future
Course Overview With buildings generating 40% of global carbon emissions, we need to achieve net-zero by 2050 to meet the Paris Agreement target and limit global warming to 2°C. Timber sequesters an average of 1.9 metric tons of carbon-dioxide equivalent emissions per cubic meter (Sathre & O’Connor, 2010). While a purely mass timber tall building may not be the most cost-efficient solution, a hybrid structure can maximize the overall use of wood by volume in the most cost-efficient manner. Floor systems in buildings contribute as much as 73% of the environmental impact of a high-rise building’s structure (Lankhorst et al., 2019), making them an excellent target for reducing embodied carbon. DIALOG’s patent- pending Hybrid Timber Floor System (HTFS) takes advantage of the benefits of cross-laminated timber (CLT) combined with pre-stressed concrete to achieve a 12-metre column-free span. The HTFS is proposed as part of our Hybrid Timber Tower, a 105-storey mixed-use prototype that is being evaluated and tested by DIALOG and EllisDon. The prototype structure consists of the hybrid timber floor, combined with a concrete core and an external steel frame. Fire safety is achieved in the floor panels as the exposed wood chars to form a protective layer, while the non-combustible concrete and steel band continues to support the panel. The exposed CLT panels also provide a biophilic appeal, which has shown to support cognitive function as well as physical and psychological well-being (Vidovich, 2020). DIALOG, EllisDon, FPInnovations and other partners have completed the first phase of small-scale testing on over 40 panels. We are scheduled for fire testing of the panels in Ottawa with NRCan this fall with full scale testing of the 12-meter panels starting in late 2022. Learning Objectives Describe how hybrid mass timber systems—such as the Hybrid Timber Floor System (HTFS)—reduce embodied carbon and support zero‑carbon goals in high-rise, mixed-use developments. Explain the structural, fire safety, and performance characteristics of hybrid CLT–concrete floor assemblies, including how charring, concrete bands, and steel elements contribute to long-span capability and code compliance. Evaluate the role of multidisciplinary research, prototyping, and large-scale testing in validating hybrid timber technologies for supertall applications, including their impacts on sustainability, biophilia, and cost efficiency. Course Video Speaker Bio Craig Applegath, BSc, BArch, MArchUD, PPOAA, AIBC, NSAA, AIA, FRAIC, LEED® APBD+C Founding Partner & Architect DIALOG Craig Applegath is the founding principal of DIALOG’s Toronto Studio, and a passionate designer who believes in the power of built form to meaningfully improve the wellbeing of communities and the environment they are part of. Since graduating from the Graduate School of Design at Harvard University with a Master of Architecture in Urban Design Craig has focused his energies on leading innovative planning and design projects that address the complex challenges facing our communities, as well as on his advocacy of sustainable building design and urban regeneration and symbiosis. Craig’s area of practice includes the master planning and design of institutional projects, including post secondary education, healthcare facilities, as well as the design of innovative mixed-use- facilities. Craig was a founding Board Member of Sustainable Buildings Canada, a Past President of the Ontario Association of Architects, and the current moderator of SymbioticCities.net. Craig has lectured or taught at Harvard, the University of Toronto, the University of Waterloo, as well as at many professional and sector related conferences around the world. In 2001 Craig was made a Fellow of the Royal Architectural Institute of Canada for his contributions to the profession of architecture. In 2017 he was presented with the OALA Honourary Membership Award for his contributions to the cause of landscape architecture in Ontario. Neel Bavishi, PEng, CEM Building Performance Analysis, Associate DIALOG Neel is passionate about applying the art and science of building performance simulation and data-driven design to produce positive outcomes for the built environment. He embraces holistic solutions that minimize the environmental impact of building assets while providing enhanced value to building owners, developers, policymakers, and designers through improved well-being and reduced total cost of ownership. Neel believes that an integrated and collaborative approach that incorporates diverse perspectives is essential for delivering high-performance buildings. A mechanical engineer by training, Neel is well-versed in whole-building energy modelling for both new and existing buildings and lifecycle cost analysis, design optimization, and data visualization. His experience includes developing energy models for green building certification programs, carbon-neutral retrofit studies and district energy strategies, and the development of net-zero energy and emissions policies and standards for municipal, provincial, and federal government bodies. His projects span various asset classes, including recreational facilities, commercial high-rise towers, multi-unit residential buildings, hospitals, data centres, and transit facilities. He is a licensed Professional Engineer in the province of Ontario and is a Certified Energy Manager. Cameron Ritchie, PEng, PE, PhD, BSE Structural Engineer, Associate DIALOG Cameron is an Associate on the Structural Engineering team in DIALOG’s Toronto studio. Since graduating with a PhD from the University of Toronto, Cameron has acted as a structural design engineer and project manager across a variety of sectors and project types, including healthcare, institutional, government, and retail. He has experience in all stages of a project delivery, from feasibility studies through construction administration and management. Cameron is DIALOG’s project manager for the hybrid timber floor system (HTFS) research program, working closely with industry partners EllisDon. He is passionate about exploring mass timber wherever possible as a sustainable solution to our building needs.
