Specs pivot on numbers, not adjectives
Architects read environmental claims the way TSA scans luggage—everything gets x-rayed. Life-cycle metrics inside an Environmental Product Declaration (EPD) are the only figures that travel un-questioned through that scanner. Hand-waving about green materials can’t compete with a clear Global Warming Potential (GWP) table.
Sto: thirty-three declarations, three angles
Sto’s facade catalog now lists 33 product-specific EPDs covering EIFS and rainscreens (Sto website, 2024). Pick the system that matches your project and spotlight:
- Lower GWP per square foot than the EIFS industry average, credited partly to mineral-wool options.
- Documented service life over 50 years reduces replacement impacts—important for owners calculating total carbon.
- Compatibility with fire-rated assemblies already listed in their ICC reports, saving designers a second lookup. Mention all three and you will hear keyboards clicking.
At Sto, YKK AP, or CRL and want to win specs?
Follow us for a product-by-product EPD analysis to see how your offerings stack up and where to capitalize on gaps.
YKK AP: aluminum math in plain English
YKK AP touts product-specific EPDs for seven façade categories—the first framing supplier to cover its full U.S. lineup (YKK AP, 2024). Translate the dense PDF into quick cues:
- "Each pound of recycled billet trims 9 kg CO₂e from the frame" (table 4 of the window-wall EPD).
- Factory extrusion in Dublin, GA means transportation is already within the LEED regional radius for most East-coast jobs.
- All declarations are UL-validated through 2029, so no mid-project renewals.
CRL: borrowing the extrusion baseline
CRL’s glass-and-aluminum rail packages rely on standard North American extrusions. The Aluminum Extruders Council UL EPD (2022) gives you cradle-to-gate impact factors for mill-finish, painted, and anodized profiles (AEC, 2022). Until CRL publishes product-level sheets, map those baseline values to linear-foot take-offs in your railing schedule. Designers care less about brand authorship than data integrity.
Connect dots designers forget
Slide one: product photo. Slide two: EPD page with the relevant module totals circled. Slide three: a bar chart comparing that total to the PCR benchmark median. If the gap is ≥15 %, you have a differentiation story the competition can’t match.
Pre-empt the three classic objections
"Your numbers use recycled content—what if supply dips?" Answer with the extrusion EPD’s sensitivity analysis showing GWP stays below the benchmark even at 25 % scrap.
"Does the declaration expire mid-construction?" Point to Sto’s 2029 and YKK’s 2030 validity dates.
"How does end-of-life recycling count?" Highlight module D credits; most architects still ignore them, so you look like the adult in the room.
Follow up after the bid
Email the sustainability lead a tidy spreadsheet linking each CSI spec line to its EPD and PCR reference. Ninety seconds of scrolling beats a 90-page PDF. That simple act of service often nudges your product from approved equal to sole source. Dont underestimate that.
