What is expiring and when
Based on our review as of May 21, 2026, three SAINT-GOBAIN ISOVER EPDs are set to expire in January 2027:
- S-P-01320 Fieltro Midfelt (valid to 2027-01-01)
- S-P-01322 Solarmaxxi (valid to 2027-01-01)
- S-P-00964 Feltro Wallfelt (valid to 2027-01-01)
Note for completeness. We also see S-P-06330 Ecophon Mineralis expiring on 2027-01-01 under the same legal entity, which touches acoustical ceilings rather than wall felts.
Are replacements already live
We do not find newer product‑specific EPDs for these three exact product names in public operator libraries or manufacturer listings as of the date above. Some ISOVER lines have fresh EPDs published in 2024 and 2025 for adjacent products, yet no one‑for‑one replacement for Midfelt, Solarmaxxi, or Wallfelt appears visible.
If a renewal is in motion, it has not surfaced publicly yet. That could change quickly, so spec teams should re‑check before final submittals.
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What specifiers might reach for instead
If January arrives without replacements, specifiers who must submit current EPDs are likely to consider comparable mineral wool alternatives with active declarations:
- Knauf Insulation glass wool for partitions, for example TP 238 45 mm and 60 mm, with EPDs current to July 2029.
- ROCKWOOL France stone wool building insulation families with French market EPDs current into November 2028 and July 2029.
- For the Ecophon Mineralis ceiling use case, Armstrong mineral fiber ceiling panels such as Armatuff carry EPDs current to October 2030. Rockfon Mono Acoustic shows validity into August 2029.
These examples are not endorsements, only realistic substitutes a project team would shortlist when an EPD gap appears.
Commercial risk in plain terms
Most construction EPDs follow a five‑year validity pattern under EN 15804 aligned operator rules. Once the clock runs out, the declaration is no longer considered current for programs that require an in‑date EPD for credit or procurement, which can quietly disqualify bids that looked perfect otherwise (ECO Platform, 2025). The volume of EPD‑backed products keeps rising fast. INIES alone listed more than 323,000 product references as of April 16, 2026, which raises the competitive bar for staying findable and compliant (INIES, 2026).
Renewal timing that protects specs
Treat January 2027 as a hard stop. A smooth renewal usually starts with a short data recon to confirm the reference year, any plant changes, and PCR alignment, then kicks into verification and publication. That sequence often fits well inside two quarters if data is organized and the program operator’s queue is clear.
Two practical tips help:
- Lock your reference year now and line up utility and volume data early. Missing meters and mass balances are what burn weeks.
- Confirm the target PCR and operator up front so reviewers are not debating scope late in the game.
Where to find the manufacturer’s EPDs
ISOVER’s corporate and national sites keep posting new declarations and FDES downloads. Useful entry points include the French sustainability pages and EPD explainers, where product FDES are linked from product cards: Eco‑design at Isover and Product health and FDES overview. For UK market EPD PDFs, see the live index here: Isover UK EPD Certificates. Program operator library listings are also public, for example the International EPD System library entry for ISOVER Facade boards: EPD International library.
What this means for January 2027 bids
If renewed EPDs for Midfelt, Solarmaxxi, and Wallfelt go live before 2027‑01‑01, specifiers keep using the same SKUs with no disruption. If not, they will likely pivot to comparable glass or stone wool with current EPDs from the competitor set above. That swap is easy for a design team and hard on a sales forecast.
The fastest path is simple. Confirm scope, gather the right data once, and publish without drama. Get this right and the EPD is not just a PDF. It is a ticket that keeps a product in the room where decisions happen. That is definately worth a calendar reminder.
