Mass timber is a natural choice for building recycling through deconstruction

Mass timber is an ideal material for structures designed for deconstruction and offers continued carbon storage after the expiration of the building’s lifespan, as well as removing material from the waste stream.

Advocates for this strategy point out that the wood not only sequesters carbon while the building is in use, but also continues to do so after it is disassembled and the wood is reused. A broader concept, Design for Disassembly and Adaptability, aims to extend the life cycle of buildings and their components, allowing the building to be updated, maintained, and modified more easily. And at the end of its useful life, disassembly allows for more efficient collection and reuse of materials and components.

Designing for disassembly requires professionals to rethink the way buildings are put together so that the materials can be disassembled and reused. This can be a complex undertaking that bucks existing common practices.

Demolitions are usually carried out quickly, making it difficult to reuse a large part of the materials. To counteract that impulse, the project should seek methods, solutions, and products that lend themselves to easier disassembly. In addition, specifying good quality materials that do not contain harmful and polluting chemicals make the parts more attractive for reuse.

New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.