WSP, mcCallumSather and ArcelorMittal unveiled the results of a theoretical case study at The Buildings Show earlier this month, which showed the costs and sustainability of using steel, concrete or timber are similar for a typical 12-storey, 287,000-sf, L-shaped residential condominium tower in the Greater Toronto Area (GTA). A conference session titled ‘The Triple Bottom Line of Structural Materials: Cost, Speed and Life Cycle Assessment’ featured Brant Oldershaw, P.Eng., WSP’s director of structural, mechanical and electrical engineering for Southwestern Ontario; Willems Ransom, principal and architect for mcCallumSather; Matthew Winters, P.Eng., Steligence project manager for ArcelorMittal; and Mike Cortese, principal sustainability projects manager for ArcelorMittal. As they explained, WSP and mcCallumSather joined steel producer ArcelorMittal’s Steligence program to model and compare the performance of different building materials for the same theoretical project. Consulting engineering firms RJC and MTE also contributed to the project’s structural details.
The Softwood Lumber Board has released its Q3 2025 Report, highlighting significant progress tied to its new strategic plan. This quarter, SLB-funded programs advanced a coordinated strategy centered on high-opportunity sectors—1-8 story multifamily, commercial, K-12 education, and the fast-growing industrial segment—while accelerating project conversions, strengthening building code support, scaling post-secondary education, and expanding outreach in key cities.
The Canadian Wood Council (CWC) welcomes the announcement made today by the Honourable Tim Hodgson, Minister of Energy and Natural Resources. The event celebrated funding for projects that strengthen Canada’s forestry sector and foster innovation in wood-based solutions. CWC received $8.5 million since 2023 to expand the use of wood-based products, broaden education on wood construction and contribute to the advancement of the National Building Code. …This funding has allowed CWC and its WoodWorks program to support design and construction professionals with expert resources, tools, and guidance that help accelerate the adoption of wood construction nationwide. As we continue this work, we will help catalyze sustainable demand for construction solutions that are not only innovative but also replicable and rapidly deployed, approaches that will help address Canada’s housing and affordability challenges at scale.
When Prime Minister Mark Carney toured Intelligent City’s advanced manufacturing facility in Delta, B.C. this spring, it was more than just another campaign stop. It signalled that prefabricated and modular construction has moved from the margins to the mainstream of Canada’s housing conversation. That recognition is overdue. If we are serious about tackling Canada’s housing affordability crisis by delivering more homes at scale, governments need to stop paying lip service to the huge potential of off- site construction and start putting it into policy and practice. …First, governments should publish a multi-year prefabricated housing procurement roadmap. Off-site manufacturing depends on predictable, portfolio-scale demand. A provincial roadmap in British Columbia, for example, that consolidates housing needs across ministries, Crown agencies, and municipalities would give factories the confidence to invest in automation, skilled labour, and supply chains.
EDMONTON, AB – Celebrated for its pioneering mass timber design and construction, commitment to safety and collaborative excellence, Limberlost Place has been named the Global Best Project of the Year by Engineering News-Record (ENR). In addition to PCL Construction and partners taking home the top honour, PCL was also awarded ENR’s Global Best Projects Award for Limberlost Place in the Education/Research category. …Ontario’s first institutional building of its kind, George Brown Polytechnic’s Limberlost Place has set a new precedent for mass timber construction as a model for sustainable, green building innovation. Located in Toronto, Ontario, the 10-story mass timber, net-zero educational facility integrates first-of-its-kind solutions including: Groundbreaking slab band structural system that advances the use of mass timber in multi-storey buildings; North America’s largest mass timber columns soaring three stories tall; and a striking mass timber feature stair, spanning levels three to five as a centerpiece of architectural design.
TORONTO — The Ontario government has launched a new working group to guide the implementation of the 
…Biophilia — a concept that’s been introduced in the pages of Health & Home before — is a term coined by the sociologist Erich Fromm and later adopted by biologist Edward O. Wilson in a 1984 book of the same name. Bill Browning, co-founder of the New York City-based sustainability consulting firm Terrapin Bright Green and chair of the Biophilic Institute, defines it as the “innate affiliation of humans to other living organisms and lifelike processes.” …Browning’s firm published a paper in 2022 titled “The Nature of Wood,” which distilled the available research on why people tend to gravitate to wood as a natural material. …Browning’s company has summarized some of biophilia’s high-level takeaways in a paper called “14 Patterns of Biophilic Design: Improving Health & Well-Being in the Built Environment.” In it, they outline how light, water, airflow and even a very primal sense of safety can positively affect cognitive performance as well as our mind-body relationship.
Mark Latino is the CEO of Lee Display, a Fairfield, California-based company… that still makes artificial Christmas trees, producing around 10,000 each year. Tariffs shone a twinkling light this year on fake Christmas trees — and the extent to which America depends on other countries for its plastic fir trees. Prices for fake trees rose 10% to 15% this year due to the new import taxes, according to the American Christmas Tree Association, a trade group. Tree sellers cut their orders and paid higher tariffs for the stock they brought in. Despite those issues, tree companies say they aren’t likely to shift large-scale production back to the US after decades in Asia. Fake trees are labor-intensive and require holiday lights and other components the US doesn’t make. …About 80% of the US residents who put up a Christmas tree this year planned to use a fake one. …That percentage has been unchanged for at least 15 years.
Schools built with mass timber have recently opened to positive community response in the Seattle, Renton and Highline school districts, and another is under construction in West Seattle. … Throughout the United States and Canada, about 150 educational projects have already been built with mass timber. Mass timber products such as Glulam and Cross-Laminated Timber are made from lumber stacked in layers to create large components — columns, beams and panels that become the structures of buildings of all types. These large building components drive efficiency in construction while reducing the carbon footprint. In Washington, mass timber can now be used in buildings up to 18 stories, a renewable, resilient alternative to steel and concrete. The Pacific Northwest is well-positioned to be a leader in this industry. …structures made from mass timber, where the wood remains exposed, have 
Payson sits in one of the most fire-prone regions in the country, yet the town council has repeatedly declined to adopt fire-hardening requirements for new homes. The town several years ago approved a Firewise landscaping code aimed at thinning overgrown properties and removing vegetation touching buildings. However, the council has twice rejected a Wildland-Urban Interface (WUI) building code, most recently after firefighters urged the council to adopt standards for new construction. Builders raised concerns about cost, and the council again declined to move forward. A collection of studies suggests those concerns may not align with the data. Research from federal agencies, economists and wildfire specialists shows WUI codes add little to the cost of new construction, save money over time and significantly reduce the likelihood of homes burning in a wildfire. The research also points to major long-term savings for taxpayers, who shoulder growing federal firefighting costs in high-risk areas.
Bamboo tissue’s green image fades once you factor in coal-powered manufacturing. Bamboo tissue paper produced in China has become a popular option for shoppers looking to reduce their environmental impact. Despite its green reputation, new research suggests these products may not deliver the climate advantages many consumers expect. In some cases, bamboo tissue may even have a greater environmental footprint than tissue made in the United States. A recent 
The smell of an old book … escapes as a cover is eased open or a stiff page lifted, settling briefly in the air between hand and paper. In libraries and second-hand shops, it is a faint but persistent smell… It is often associated with comfort and habit, yet it has a material basis. Conservators and chemists treat it as evidence of physical change. Paper, ink, glue, and binding age continuously, releasing compounds that remain present long after printing. What is sensed is the slow chemistry of use and storage. …Paper accounts for much of the smell associated with old books. From the nineteenth century onwards, most paper was produced from wood pulp containing cellulose fires and lignin. Over time, these components undergo chemical change. Cellulose chains fracture and shorten. Lignin oxidises and breaks into smaller fragments. These processes release volatile organic compounds that drift from the page surface.
