Brock Commons Tallwood House, UBC: An Environmental Building Declaration According to EN 15978 Standard

Brock Commons Tallwood House, University of British Columbia
Photography: Brudder Productions

The goal of the assessment is to quantify the environmental performance of Brock Commons to publicly declare the environmental performance of the building and communicate the results to educate and inform the building sector and stakeholders about the environmental implications of this project and wood-hybrid high rise construction in general.

The scope of LCA is a cradle-to-grave analysis of the material effects of structure, envelope, interior partition, and finish assemblies, and operating energy use, over a 100-year period. The LCA primarily draws on data from the Athena Sustainable Materials Institute’s ISO 14040/44 conforming Impact Estimator for Buildings software database and augmented with the Institute’s secondary databases and Environmental Product Declarations (EPDs). Life cycle impacts were evaluated according to TRACI v2.1 category mid-point characterization methodology2 and the LCA modelling was performed with a customized Excel-based tool.

In addition to the LCA, The Environmental Building Declaration Summary reports the lifetime environmental footprint of this building. Results were calculated using an analytical technique known as life cycle assessment (LCA), a scientific method for assessing all the interactions between a building and nature and estimating the resultant burdens on air, land and water. This resource is also publicly available in the Athena Sustainable Materials Institute.

Brock Commons Tallwood House, University of British Columbia: An environmental building declaration according to EN 15978 standard

This document presents a whole-building environmental life cycle assessment (LCA) of the University of British Columbia (UBC) Brock Commons Tallwood House, a student residence. The LCA was commissioned to publicly declare the environmental performance of the building.

Construction drone view of Brock Commons Tallwood House cross-laminated timber (CLT) floor panel being lifted into place with crane to be set on parallel strand lumber (PSL) and glue-laminated timber (glulam) columns
Carbon Calculator by Canadian Wood Council

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Log loading credit Nik West courtesy naturallywood.com
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Light-frame construction beams and roof trusses shown being installed on low-rise residential structure by construction worker with nail gun and fall arrest harness
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