TerraveGlazing
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Glazing · 1 m²

Double or triple IGU — what's the glass makeup?

Your mix design
Glazing unit configurationKEY
Pane thickness
Low-e coatings
Cavity fill gas
Spacer bar

Estimates based on A1–A3 ecoinvent v3.12 emission factors. Results are indicative — not a certified EPD.

Your carbon footprint · A1–A3
11.3
kg CO₂-eq/m²
15avg 2335
Below industry average
Source: Glass for Europe EPD programme 2023
Buy Clean Compliance
0 of 0 active jurisdictions
All pass
Proposed
Federal GSA (IRA)
✓ would pass
limit 20 (pending)
This is a quick carbon estimate — indicative only (±15–25%). Not a certified EPD.
Need a certified EPD?

Our AI guide walks you through the full process step by step — no technical knowledge required. About 15 minutes.

Start guided EPD builder →

Why glazing producers need EPDs

Window and curtainwall assemblies are required in LEED v4.1 MRc4 and increasingly specified in high-performance building envelopes. Low-e coating sourcing is a growing differentiator.

Buy Clean compliance

California, Colorado, Oregon, Washington, and the Federal GSA now require EPDs for public procurement. Without one, you can't bid on these projects.

LEED v4.1 credit

Material Ingredient Reporting credits require manufacturer EPDs. Architects specifying green buildings increasingly mandate them.

Specifier preference

Major construction firms are implementing embodied carbon targets. An EPD showing a low GWP is a competitive differentiator.

Key insight

Float glass production energy (electric vs gas melting) and low-e silver coating mass are the primary GWP drivers.

How it works

01

Upload your bill of materials

Drop any format — Excel, PDF, CSV, or describe your product in plain English.

02

AI matches to verified LCA data

TrueMatch maps each material to ecoinvent v3.12 processes with confidence scores.

03

Download your EPD

ISO 14025-aligned PDF with GWP results, Buy Clean compliance, and all methodology references.

Generate Full EPD →

Questions? Request a demo →

Frequently asked questions

What is an EPD and why do I need one?

An Environmental Product Declaration (EPD) is a standardized document reporting the environmental impacts of your product, primarily carbon (GWP). They are increasingly required for public procurement, LEED v4.1 compliance, and Buy Clean legislation in multiple US states.

How accurate is this calculator?

The calculator uses published emission factors from ecoinvent v3.12 and industry EPD averages. Results are indicative (±15–25%) — accurate enough for benchmarking and compliance screening but not a substitute for a certified EPD.

How long does it take to generate a full EPD?

Most EPDs complete in 10–30 minutes once your BOM is uploaded. The AI handles material matching, impact calculation, and PDF generation. You review and approve each step.

What standards does Terrave follow?

Terrave follows ISO 14025 (EPD programme), EN 15804+A2 (product category rules for construction), ISO 14040/14044 (LCA methodology), and uses ecoinvent v3.12 for background LCA data.

Need a certified EPD?

Talk to us about your project

Our team can walk you through the full EPD process — from bill of materials to a verification-ready document. No jargon, no LCA background required.

Request a demo →greg@terrave.co