A practical approach to embodied carbon: start with the biggest materials, improve specs, request EPDs, and track what you bought (not engineering advice)
Important: This is operational guidance, not engineering advice. Coordinate with design and construction professionals for technical specifications.
Use this when:
Related resources:
Embodied carbon is emissions associated with:
It's "upfront" and often locked in when projects are designed and procured.
Beginner rule: Start with 3 materials that usually dominate: concrete, steel, insulation (plus major MEP equipment if relevant).
Start with:
You do not need perfect quantities to start. Start with:
Use a vendor-friendly request:
Examples of lightweight requirements:
Embodied carbon programs fail when:
Your evidence set should include:
| Project | Site | Material/system | Product (if known) | Quantity (estimate ok) | Unit | EPD available? | Evidence link | Notes | |---|---|---|---|---:|---|---|---|---|
Subject: Request: product documentation / EPDs (if available) — [Project] Hi [Name], For our project documentation and internal reporting, can you provide for [project]: - product identifiers and cut sheets for key materials - quantities (estimate is okay if final not available) - any existing Environmental Product Declarations (EPDs), if you have them If EPDs aren't available, no problem — please provide product specs and quantities. Thanks, [Name]
Low-Carbon Spec Checklist (Starter) - Require product IDs and quantities in submittals - Request EPDs where available - Allow alternatives if functionally equivalent - Document substitutions and approvals - Store evidence in a consistent project folder
| Project | Submittal item | Decision (approved/alt needed) | Low-carbon alternative considered? | Owner | Evidence link | Notes | |---|---|---|---|---|---|---|
Embodied Carbon Methods Note (Internal) Projects included: Materials prioritized: Data sources: - submittals - EPDs (where available) - quantity estimates Limitations: Improvement plan: - increase quantity accuracy - expand material coverage - standardize spec language
v1.0 (2026-01): Latest release