CIBSE TM65, Embodied carbon in building services: A calculation methodology, and CIBSE/ASHRAE TM65NA, Embodied carbon in building services: A calculation methodology for North America PDF

TM65: 2021 and TM65NA: 2024 BUNDLE

Includes:

• CIBSE TM65: 2021 – Embodied carbon in building services: a calculation methodology (ISBN: 978-1-912034-91-8)
• CIBSE/ASHRAE TM65NA: 2024 – Embodied carbon in building services: a calculation methodology for North America (ISBN: 978-1-914543-91-3)

Embodied carbon in building services: A calculation methodology (TM65) outlines the need for assessment of embodied carbon of products linked to building services engineering systems, to increase knowledge and facilitate research related to whole life carbon. In this document, embodied carbon is understood as the greenhouse gas emissions associated with the manufacture of a product, its installation, maintenance, repair, replacement, and end of life. It covers the whole life cycle, excluding operational aspects and the potential recovery, reuse or recycling of materials. The embodied carbon associated with building services design can be significant over a building's lifetime, due to the materials used and high replacement rates.

This document provides guidance on how to use environmental product declarations (EPDs) to assess the embodied carbon of building services equipment; and where EPDs are not available, it provides guidance on how to estimate the embodied carbon.

The purpose of this guide is to help the industry take a first step together to evaluate embodied carbon emissions in building services design, alongside operational carbon emissions. The intention is for consultants and engineers to feed their findings back to CIBSE, enabling us to create rule of thumb guidance and to develop an embodied carbon product database - and allowing us to iterate, and further develop the CIBSE embodied carbon methodology.

TM65NA aims to complement TM65, providing detail of alternative assumptions to be made when using the TM65 methodology to calculate the embodied carbon impact of building services equipment installed in North America (United States, Mexico and Canada). It is not a standalone document and cannot be applied without first understanding TM65.

The CIBSE embodied carbon methodology includes several publications, digital tools, and free-to-all data-gathering forms. All of these can be accessed from www.cibse.org/tm65.