Wood Design: A Guide for Architects and Educators
This Guide is designed to help educators increase wood content in their already crowded curricula, exposing students to the unique challenges and opportunities of designing with advanced wood systems, within the context of the program and student performance criteria established, maintained, and evaluated by the Canadian Architectural Certification Board.
Wood Design & Building Magazine, vol 24, issue 96
Buildings that stand the test of time aren’t just durable—they are cherished. When we invest in quality materials and good design, we can create buildings that people connect with. As you’ll discover in this issue, many heavy timber warehouses and factories constructed in the early 1900s remain a vital part of our cities today—not because they still serve their original purpose, but because people valued them enough to adapt, restore, and reuse them, giving them a new purpose. Fast forward a hundred years and resilient structures include many new forms. Modular construction, for example, has seen significant growth in recent years as this form of construction has transformed from a building method once considered inferior, into a method relied upon to deliver high-performance durable buildings. Alongside our features on historic timber buildings and modular construction, this issue also highlights notable projects and emerging trends shaping today’s built environment. From innovative mass timber structures to forward-thinking design solutions, we explore how thoughtful craftsmanship and smart engineering continue to define the spaces we build—and the ones we keep.
Wood Design & Building Magazine, vol 24, issue 95
Guide to Encapsulated Mass Timber Construction in the Ontario Building Code
Advanced Wood Construction Action Plan
Historical Tall-Wood Toronto
Courtesy of the Mass Timber Institute There is much to learn from the resilient and adaptable warehouse buildings that line the streets of Canada’s historic manufacturing districts. ‘Historical Tall-Wood Toronto’ is an evidentiary database of late 19th and early 20th century vernacular brick and beam buildings that were built using the fire restrictive specifications and construction technology of Heavy Timber Mill-Construction (mill-construction) in Toronto.
The 2025 Ottawa Wood Solutions Conference will be presented on February 5, 2025 at the National Arts Centre
December 19, 2024 (Ottawa) – The 2025 Ottawa Wood Solutions Conference will be presented on Wednesday, February 5, 2025, from 8:00 am to 5:00 pm, at the National Arts Centre, located at 1 Elgin St. in Ottawa. First launched over 20 years ago to serve design and construction professionals interested in building with wood, this event has evolved from a niche gathering into a cornerstone of professional education, driven by the growing demand for sustainable wood construction. The program offers a range of presentations—from technical deep dives to inspiring case studies—catering to participants at every stage of their professional journey, from newcomers to seasoned experts. Attendees can also take advantage of valuable opportunities to connect, collaborate, and expand their professional networks within the wood community. Conference organizers are delighted to welcome Christophe Ouhayoun of KOZ Architects (France) to share insights into the innovative, collaborative development of the Paris Olympics Athletes’ Village. His presentation will also explore the current effort underway to convert these structures into much-needed permanent housing, highlighting this progressive mass timber development as a model of adaptability and sustainability. Another program highlight pays tribute to the venue itself. Donald Schmitt, CM, of Diamond Schmitt Architects will present on the revitalization of the National Arts Centre, offering a behind-the-scenes look at the timber structure and prefabrication process that transformed this iconic building into a modern landmark. Other technical presentations include managing sound and vibration in mass timber buildings and growing Canadian capacity for industrialized wood construction, advancing wood products in our changing climate, and a discussion of the value of conventional wood frame construction in small communities where it provides job opportunities, with a specific focus on Indigenous housing projects. Early Bird registration of just $99+HST is available until the end of December. In the new year, registration for the conference will be $149 +HST. Delegates can find the Ottawa Wood Solutions Conference on Eventbrite or jump directly to online registration with this link: https://www.eventbrite.ca/e/2025-ottawa-wood-solutions-conference-tickets-1080654991169 A limited number of discounted passes are available for post-secondary educators and students in AEC+D programs of study. Please contact Kelsey Dayler for more information kdayler@cwc.ca.
Glenora West Block 300
La revue Le Bois: Conception & Construction
Wood Design & Building Magazine, vol 23, issue 94
Acoustics
Wood is composed of many small cellular tubes that are predominantly filled with air. The natural composition of the material allows for wood to act as an effective acoustical insulator and provides it with the ability to dampen vibrations. These sound-dampening characteristics allow for wood construction elements to be specified where sound insulation or amplification is required, such as libraries and auditoriums. Another important acoustical property of wood is its ability to limit impact noise transmission, an issue commonly associated with harder, more dense materials and construction systems. The use of topping or a built-up floating floor system overlaid on light wood frame or mass timber structural elements is a common approach to address acoustic separation between floors of a building. Depending on the type of materials in the built-up floor system, the topping can be applied directly to the wood structural members or over top of a moisture barrier or resilient layer. The use of gypsum board, absorptive (batt/loose-fill) insulation and resilient channels are also critical components of a wood-frame wall or floor assembly that also contribute to the acoustical performance of the overall assembly. Acoustic design considers a number of factors, including building location and orientation, as well as the insulation or separation of noise-producing functions and building elements. Sound Transmission Class (STC), Apparent Sound Transmission Class (ASTC) and Impact Insulation Class (IIC) ratings are used to establish the level of acoustic performance of building products and systems. The different ratings can be determined on the basis of standardized laboratory testing or, in the case of ASTC ratings, calculated using methodologies described in the NBC. Currently, the National Building Code of Canada (NBC) only regulates the acoustical design of interior wall and floor assemblies that separate dwelling units (e.g. apartments, houses, hotel rooms) from other units or other spaces in a building. The STC rating requirements for interior wall and floor assemblies are intended to limit the transmission of airborne noise between spaces. The NBC does not mandate any requirements for the control of impact noise transmission through floor assemblies. Footsteps and other impacts can cause severe annoyance in multifamily residences. Builders concerned about quality and reducing occupant complaints will ensure that floors are designed to minimize impact transmission. Beyond conforming to the minimum requirements of the NBC in residential occupancies, designers can also establish acoustic ratings for design of non-residential projects and specify materials and systems to ensure the building performs at that level. In addition to limiting transmission of airborne noise through internal structural walls and floors, flanking transmission of sound through perimeter joints and sound transmission through non-structural partition walls should also be considered during the acoustical design. Further information and requirements related to STC, ASTC and IIC ratings are provided in Appendix A of the NBC in sections A-9.10.3.1. and A-9.11.. This includes, inter alia, Tables 9.10.3.1-A and 9.10.3.1.-B that provide generic data on the STC ratings of different types of wood stud walls and STC and IIC ratings for different types of wood floor assemblies, respectively. Tables A-9.11.1.4.-A to A-9.11.1.4.-D present generic options for the design and construction of junctions between separating and flanking assemblies. Constructing according to these options is likely to meet or exceed an ASTC rating of 47 that is mandated by the NBC. Table A-Table 9.11.1.4. presents data about generic floor treatments that can be used to improve the flanking sound insulation performance of lightweight framed floors, i.e., additional layers of material over the subfloor (e.g. concrete topping, OSB or plywood) and finished flooring or coverings (e.g., carpet, engineered wood).
2024 Catherine Lalonde Memorial Scholarships Celebrate Students Driving Innovation in the Wood Industry
Ottawa, ON, December 12, 2024 – The Canadian Wood Council (CWC) announced the recipients of the 2024 Catherine Lalonde Memorial Scholarships: Laura Walters (McMaster University) and Jiawen Shen (University of British Columbia). Both students were recognized for their academic excellence and impactful research projects in the structural wood products industry. Established nineteen years ago, the memorial scholarships are awarded each year to graduate students whose wood research exemplifies the same level of passion for wood and the wood products industry that Catherine Lalonde tirelessly demonstrated as a professional engineer and president of the CWC. Laura Walters Laura is a 3rd-year graduate student pursuing a Master of Applied Science in Civil Engineering under a joint collaboration between McMaster University and the University of Northern British Columbia (UNBC). Her research project explores the use of pre-engineered beam hangers in mass timber post-and-beam systems, with a focus on the implications of design and modelling assumptions on the evaluation of structural load paths. Her work provides valuable insights into the design considerations and assumptions required for more accurate and reliable design of mass timber columns when pre-engineered beam hangers are used. Jiawen Shen Jiawen is a 1st year graduate student pursuing a Master in Wood Science at the University of British Columbia. Her research project focuses on the development of binderless composite bark-board cladding and insulation panels that are durable, ignition resistant, carbon neutral, and manufactured from an underutilized by-product that would otherwise be burned, landfilled, or used for low-value purposes. Collaborating with a Vancouver-based architecture firm on this project, her work is key to advancing the commercial application of these innovative cladding products. “This year marks a historic milestone for the Catherine Lalonde Memorial Scholarship program as, for the first time, it is awarded to two exceptional women,” said Martin Richard, VP of Market Development and Communications at the CWC. “Their achievements highlight the outstanding talent driving innovation in wood research and construction. We are inspired by their contributions and the growing diversity shaping the future of wood-based solutions.”
