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.
Delivering Mid-Rise Housing Solutions – Part 2 Mass Timber
Course Overview WoodWorks Ontario proudly presents Delivering Mid-Rise Housing Solutions Part 2: Mass Timber. YWKW is a supportive housing project that obtained funding from the Federal Rapid Housing Initiative in Kitchener. This project optimized mass timber design that resulted in time and cost savings during construction. We will hear from the perspective of Element 5, Edge Architects, RDH and Melloul Blamey. They will discuss how important preconstruction planning is and getting all parties involved early. Each role will discuss their roles that lead to a quick and successful project. Learning Objectives Understand the application and benefits of prefabricated mass timber construction in mid-rise housing developments – speed up construction processes and address housing crises. Analyze the project management and logistical challenges involved in executing mid-rise housing projects with prefabricated materials. Evaluate the environmental impact and sustainability benefits of using mass timber in residential construction. Discuss the implications of using prefabricated mass timber on the regulatory and approval processes in construction projects. Course Video Speaker Bio Patrick Chouinard Founder and VP of Market Strategy & Corporate Communications Element5 Patrick Chouinard is the Founder and VP of Market Strategy & Corporate Communications at Element5, the newest and most technologically advanced CLT and glulam manufacturer in North America, and the only CLT producer in Ontario. Patrick’s specialty lies in his ability to orchestrate mass timber solutions together with a consortium of the industry’s best service providers with experience in mass timber. He is the driving force behind a rapidly growing company that not only manufactures mass timber components, but also provides a complete range of services to successfully execute timber construction projects on a large scale. Patrick believes mass timber is the essential building material of the 21st century and Element5 is proud to manufacture their products from sustainably managed local sources. Patrick is a passionate advocate for construction industry transformation and believes that prefabricated mass timber construction is the key to the significant gains in construction efficiency and building performance that we need to meet our significant housing and infrastructure needs in a sustainable way that contributes to a low carbon future. Matt Bolen, BAS, M.Arch, OAA, MRAIC, CPHD Founding Partner Edge Architects Matt Bolen is one of the founding partners of Edge Architects in Waterloo, Ontario. Edge’s portfolio encompasses a wide range of project types for a diverse client base. In addition to providing professional consulting services, the firm has been involved in several innovative research and development initiatives. Matt’s area of expertise is multi-residential building design with a specific focus on mid-rise (the missing middle) and attainable housing models. His professional interests include modular/ prefabrication, mass timber construction, and high-performance/ energy efficient design. In addition to being a Licenced Architect with the Ontario Association of Architects, Matt is a Certified Passive House Designer and has prior experience as both an energy auditor and small building contractor. Further to his role as a principal at Edge, Matt is a lecturer at the University of Waterloo School of Architecture for the graduate level Architectural Professional Practice course. Matt is himself a graduate of Waterloo Architecture where his master’s thesis was focused on urban revitalization of mid-sized cities using Kitchener-Waterloo as a case study city. Jeffrey B. Shantz Partner Melloul-Blamey Construction Inc. Jeff Shantz is a partner of the general contracting firm, Melloul-Blamey Construction based out of Waterloo, Ontario. The firm was founded in 1982 and is active in Public Bid, Design Build, Construction Management and Property Development. Jeff manages Project Development at the firm and oversees projects from concept to completion. He leads the feasibility process along with project cost, constructability and material selection for all major projects undertaken. Jeff started with the company in 1993 and quickly took charge of the Design Build operations and became a partner in 2001. He achieved CCA Gold Seal Certification in Project Management in 2006, past Chair of the Board at the Grand Valley Construction Association in Southern Ontario and past member of the General Contractor National Advisory Council at the CCA. In addition to his role at Melloul-Blamey Jeff also serves as Vice President at HIP Developments, a company created to utilize the expertise of the Construction Company and develop exciting multi-residential projects throughout southern Ontario. Utilizing the same skill set that resulted in many award winning projects at Melloul-Blamey, he has been able to guide new developments at HIP to the same high standards and project success. Jonathan Smegal Senior Project Manager RDH Building Science Inc. Jonathan Smegal is Based in Waterloo, and is an important part of the Building Science Laboratories team. He regularly leads laboratory research, forensic analysis of building failures, hygrothermal modeling, and field monitoring of building enclosure performance. A trusted resource, Jonathan has managed more than a dozen full-scale field tests of wall and roof performance in various locations throughout North America. He has also been involved with numerous new construction site audits for residential and commercial construction, from the design phase through to the final walk-through. Jonathan enjoys the challenges of working on the design and investigations of buildings with unique interior conditions such as swimming pools, ice rinks, secure greenhouses, and music stores all over North America.
Aspen Art Museum: Creating an Innovative Wood Structure
Course Overview The Aspen Art Museum, designed by architect Shigeru Ban, includes a long-span three-dimensional wood space-frame roof. Ban’s charge was to create a wood space frame with spans of more than 50 feet and cantilevers of 14 feet, in a structural depth of 3 feet. The space frame was to have two planes of intersecting diagonal webs of curved members that undulated up and down to touch the planes of the top and bottom chords with no visible connectors. This case study presentation will describe the design and construction of the wood structure, including paths explored but not chosen for the final design. Learning Objectives Articulate the particular demands associated with creating a 3-dimensional space frame entirely in wood. Recognize the advantages and disadvantages of several wood connection strategies in space-frame structures. Be aware of manufacturing capabilities and limitations that influenced the design of the Aspen Art Museum roof structure. Understand the importance of early engagement of manufacturing and engineering partners in the design process for innovative wood structures. Course Video Speaker Bio Gregory R. Kingsley, PhD, PE President and CEO KL&A Inc. Gregory is the president and CEO of KL&A Inc., Structural Engineers and Builders in Golden, Colorado, a firm of 65 that includes structural engineers, steel detailers, and construction managers. He enjoys working with design architects on innovative structures, especially wood and steel.
A Business Case for Tall Wood
Course Overview This session will present a vision and business case for innovation, sustainability, and affordability for the tallest residential wood tower in the world (proposed in Nova Scotia). Addressing rapid delivery to meet urgent residential needs supported by Bird Construction costing and scheduling. Learning Objectives Understand the business case for developing tall residential mass timber buildings, including how sustainability, affordability, and rapid delivery needs are addressed through advanced structural design and innovative project phasing strategies. Identify the key costing, scheduling, and manufacturing considerations that influence the feasibility of tall wood construction, including lessons learned from previous mass timber projects and the role of integrated project teams in mitigating bottlenecks. Evaluate how mass timber products such as glulam and CLT can support high‑rise residential development, including insights into supply‑chain innovation, local manufacturing capacity, and the broader economic and environmental impacts of tall wood construction in Atlantic Canada. Course Video Speaker Bio Patrick Crabbe Director of Mass Timber Bird Construction Patrick Crabbe is the Director of Mass Timber at Bird Construction – Bird is a publicly traded, commercial and industrial conglomerate, recognized as a top 5 General Contractor (GC) in Canada. Patrick is also the leader of a Mass Timber Manufacturing start-up, based in Halifax, Nova Scotia. MTC is a sawmill integrated, glulam focused entity, that is currently executing a $2.3M feasibility effort to code approve proprietary high performing mass timber products (made from undervalued-commodity maritime spruce, pine and fir) that will expand the needed capacity of North American mass timber products and positively impact sustainable forestry practises. Patrick’s professional career has been dedicated to developing markets for high-value structural wood products and working with industry to facilitate the. Through this experience, Patrick has a comprehensive understanding of construction contract methods supply chain solutions to set-up large, complex, mass timber build programs for success. Patrick is an active member of the Carbon Pricing Leadership Coalition (led by the World Bank) and a trusted advisor to Infrastructure British Columbia and the Canadian Wood Council. Joe Nickerson Vice President & Partner Sidewalk Real Estate Development Joe Nickerson is a leader with a proven history of success managing a variety of real estate portfolios for high-net-worth families in Toronto, Alberta, and British Columbia. Joe has worked at RBC Capital Markets and for both private and public real estate holding companies ranging from $100M to $11B in AUM. Joe holds an MBA with a specialization in Real Estate & Infrastructure from Schulich School of Business and studied Private Equity & Finance at SDA Bocconi University in Milan, Italy.
Building Code Evolution: Understanding the Latest Mass Timber Provisions
Course Overview WoodWorks and the BC Office of Mass Timber Implementation present a brief, but detailed technical webinar focusing on the recently adopted provincial code provisions. Learning Objectives Beyond the introduction of a new, 18 storey limit, you will: Learn the additional changes for various different occupancies, building heights, and construction requirements that will help you enhance your future projects with exposed or encapsulated mass timber. Gain insights into the national landscape, understanding how these code amendments might reverberate across other provinces in Canada. Course Video Speaker Bio Cameron McDonald Technical Solutions Lead, Office of Mass Timber Implementation Ministry of Jobs, Economic Development and Innovation Cam is a former level 3 building official and BOABC member. He now works in the Office of Mass Timber Implementation, under the Ministry of Jobs, Economic Development and Innovation, as the Lead of Technical Solutions and played an active role in the development of the new code provisions for EMTC in BC. 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.
