by Wiley Gross
Sustainability Associate at Green Badger
Nobody got into project management because they love chasing paperwork. Yet here you are, opening an RFP that asks you to report embodied carbon, a line item that wasn’t on the bid form a few years ago and now sits next to your schedule and budget like it always belonged there.
Here’s the good news: this is more manageable than the acronym soup makes it look. Let’s skip the theory and talk about what teams actually track on real jobs and where a tool like Green Badger fits into your day.
The Refresher, Minus the Lecture
Embodied carbon is the carbon baked into your materials before the building ever switches on a light. Extract the raw material, haul it to a plant, manufacture it, ship it to your site. Every step has a footprint, and it’s locked in the moment you buy and place the product. Operational carbon (HVAC, lighting) can be tuned over decades. Embodied carbon gives you exactly one shot: procurement.
That’s why it matters now. As buildings have become more energy-efficient, materials have become the bigger share of the problem. Architecture 2030 pegs embodied carbon at more than half of construction-sector emissions through 2050. Regulators have noticed too. California already requires larger commercial buildings to disclose and improve their embodied carbon, and Buy Clean procurement rules are spreading across federal and state agencies. Translation: this is shifting from “nice to have” to “condition of the contract.”
The measurement lives in two places you’ll see constantly. GWP (Global Warming Potential), reported in kilograms of CO₂-equivalent, is the number. EPDs (Environmental Product Declarations) are where the number comes from: third-party-verified docs, usually Type III, that report a product’s GWP. Most cover the cradle-to-gate stages, or A1–A3 in lifecycle shorthand: raw materials, transport to the plant, and manufacturing. That A1–A3 boundary is what teams compare, so it pays to know exactly what’s inside it.
What Teams are Actually Tracking for Embodied Carbon
On real jobs, tracking focuses on a short list roughly in this order:
Concrete, concrete, and more concrete. It’s usually the biggest source of embodied carbon and the material you control through the buy, which is why it gets most attention. The lever is mix design cement content and how much you replace with supplementary cementitious materials (SCMs) like slag or fly ash. Teams track GWP per cubic yard against a baseline mix while holding performance and placement steady. Because concrete continues to gain strength, specifying a longer strength-gain window (56-day instead of 28-day, where the structure allows) can open the door to higher SCM replacement. Lower carbon, same result.
Rebar and structural steel are next. The big swing here is how the steel was made: electric arc furnace (EAF) steel from recycled scrap carries meaningfully lower GWP than basic oxygen furnace (BOF) steel from virgin iron. EPD coverage is solid, so tracking product-specific actuals is realistic.
After that, teams glance at insulation, glazing, and aluminum, but the data’s thinner and the quantities smaller, so these tend to be estimated rather than tracked to the decimal place.
Another thing that trips people up is when to track. Early-design numbers are estimates based on industry-average EPDs, which is fine for setting a baseline but not for what you actually achieved. The number that counts is the procurement-stage actual, pulled from the product-specific EPD of what you bought. Here’s the reality on most jobs: teams intend to track actuals across the whole list but only stay consistent on concrete and steel, which is where the impact lives anyway.
Whatever you track, report it as a percent reduction against baseline: “we cut structural embodied carbon 24% versus the reference design.” It’s more compelling than raw tonnage, and it conveniently keeps sensitive quantities out of the conversation.
Lessons from the field
At Green Badger, we gained real-world experience tracking this data across projects, enabling us to accurately advise teams on lessons learned. This includes decisions that save teams hundreds of hours, better spent coordinating with trades, building the project, and avoiding overtime on paper-chasing. Our consulting experience also prepared us to create a tool that automates tracking embodied carbon for project teams, regardless of the new LEED v5 requirements coming in July 2027. Book a demo today and get a first pass at Green Badger 2.0 for your team.
Now, back to lessons learned from our embodied carbon tracking experience across multiple warehouse and distribution center projects. These are fairly simple projects in sustainable architecture. However, they typically involve complex engineering, extensive site adaptations, and massive structural demands. On our first project, it took nearly 12 months to acquire all required documentation from subcontractors, run it through software to calculate GWP, and formally close out. Although it took time to perfect, we learned how to track this data succinctly to limit closeout hold-up and streamline the process. On our most recent project, Green Badger completed the required documentation in less than 3 months, well before closeout became a concern. Here’s what we learned:
A few patterns show up over and over:
- Having a material takeoff sheet filled out and ready can save a lot of upfront time and effort. A comprehensive takeoff sheet should outline critical product details, including material name and manufacturer, quantities, units of measure, and specific installation locations such as structure, enclosure, or hardscape. Proactively maintaining this baseline data prevents bottlenecks in manual tracking later in the procurement cycle.
- To ensure compliance with standardized reporting, teams should verify subcontractors provide actual installed quantities fresh for each line item, broken down by manufacturer and product type. For specialized components like insulation, it is critical to capture exact area metrics alongside verified R-values and thicknesses to resolve design discrepancies early. Streamlining data intake from the start makes it easier to identify missing product data sheets, track material location options, and prioritize the highest carbon drivers across the project.
We learned the best approach to documenting embodied carbon is to track material data (type, manufacturer, quantity, units, etc.) early as a standard procedure. Use a Bill of Materials or Green Badger’s Material Takeoff Sheet as an embedded requirement in product data submittals so trade partners have a unified process for documenting data. Green Badger also has a Material Takeoff Sheet Instructions document to guide teams. Ensure trades include product-specific EPDs, when available, as part of product data submittals for tracking GWP. Most importantly, establish communication with subcontractors during onboarding so they are aware of embodied carbon requirements and prepared to support the job.
We know this is a new requirement, and if there’s one thing this industry doesn’t love, it’s change. But real results demand real change. If we want a better world, we have to build it.
How to start without losing your mind
Keep it simple: ask for EPDs in your RFPs and submittals so the data shows up early. Go after concrete first, then steel. Set a baseline and benchmark your options. And put one person’s name on it so it survives contact with a real schedule.
The recurring surprise? Modest swaps often cut real carbon at little or no added cost. That’s exactly why owners keep asking, and why getting fluent in this now is quietly becoming a way to win work rather than just a box to check.
If the idea of managing all those EPDs, baselines, and reduction calcs across a portfolio sounds like another spreadsheet maze, that’s precisely the part worth automating. Green Badger’s EC3 integration pipes verified data from 90,000-plus products straight into your project so you can find low-carbon alternatives and calculate reductions without the manual slog. But wherever you track it, the move is the same: start with concrete, ask early, and own the number.
