Bravo, Cobiax on first EPDs
Cobiax, known for hollow‑body void formers that lighten concrete slabs, has stepped into the transparency arena. Their first Environdec EPDs arrived in June 2025, a smart move for teams chasing lower‑carbon specs without re‑engineering entire structures. Here’s what they published, who verified it, and how that shifts the competitive math in slab systems.


What landed in June 2025
Cobiax’s first Environdec EPDs went live in June 2025, covering void former systems used in cast‑in‑place concrete slabs. The scope reads like a product‑family declaration rather than a single SKU, which helps specifiers model a range of slab thicknesses without guesswork.
The program operator is the International EPD System, run by EPD International AB. For readers comparing operators, here’s a plain‑English explainer on how the system works and where it’s recognized: International EPD System: A Manufacturer’s Field Guide.
A quick note on prior coverage
Cobiax had an IBU‑verified EPD for the CLS product line issued in July 2021 that addresses structural formers for in‑situ slabs across multiple heights and slab thicknesses. In MasterFormat terms, it maps to 03 30 00 Cast‑in‑Place Concrete. The June 2025 Environdec release expands visibility beyond Germany and speaks to cross‑market tenders where buyers expect EN 15804 A2 records.
If the developer or consultant is your next question, the IBU record lists MBCC Group as the LCA developer for that CLS document. The June 2025 Environdec entries do not state a developer in the public summary we see.
Why this matters on specs
When projects score embodied carbon, missing product‑specific EPDs trigger conservative default factors in whole‑building models. With a current EPD, a voided slab can show the real effect of reduced concrete volumes instead of a pessimistic baseline, which protects pricing power and keeps you in the running longer. On LEED v5 jobs and many EU tenders, this is now table stakes rather than a nice‑to‑have.
Think of the PCR as the rulebook of Monopoly. Play by it and comparisons stay fair, which is exactly what a verified EPD buys you.
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Competitive snapshot
Closest peers in voided or formwork‑aided slab systems include Geoplast, BubbleDeck, and Daliform Group’s U‑Boot Beton.
• Geoplast shows a published EPD for its Modulo formwork under Environdec, which gives them comparable transparency in this niche. • We did not find published, product‑specific EPDs for BubbleDeck or Daliform Group in the public datasets we monitor as of January 27, 2026. Absence in those datasets doesn’t prove non‑existence, yet it does mean buyers may default to generic values when modeling those systems.
Takeaway. Cobiax is catching up where a peer already has coverage and likely gaining an edge where others appear quiet. That combination tends to open more doors at shortlist time.
Who benefits from these EPDs
Structural engineers get cleaner inputs for slab optimization and vibration checks. Developers and GCs can align early with carbon budgets without swapping systems late in design. Marketing finally has a defensible, third‑party‑verified story that supports claims about concrete and CO₂ savings instead of leaning on brochure math.
Can buyers find the documents easily
Cobiax highlights the CLS EPD on its website with a short explainer and download path, which is good practice: “CLS has its EPD”. We could not locate a matching page for the June 2025 Environdec entries on the site today. Visibility drives usage, so adding a clear EPD hub that lists both the IBU and Environdec documents by product family is a quick win. It’s a small step that pays back every time a specifier lands on your site and doesn’t have to hunt, seriously.
What to do next
If you make adjacent systems or accessories, align PCR choices to what your competitors use so comparisons stay apples to apples. Keep your data room ready with utility bills, transport distances, and supplier EPDs so renewals and extensions don’t stall mid‑model. And celebrate this milestone internally. The hard part is getting started; the next EPDs usually move faster when the pipes are open.
Bottom line
Cobiax has entered the transparency arena with Environdec in June 2025 and already has an IBU track record for CLS. That mix covers cross‑border specs and reduces the modeling penalty that comes with no data. It won’t win the job by itself, but it removes a quiet barrier that often decides who gets the phone call.
Frequently Asked Questions
What product families do Cobiax’s June 2025 EPDs cover?
Void former systems for cast‑in‑place concrete slabs, presented as a product‑family scope rather than a single SKU.
Which program operator issued the June 2025 EPDs?
The International EPD System, managed by EPD International AB. See our overview for operator context and recognition.
Is an LCA developer named for the new EPDs?
The IBU record for the 2021 CLS EPD names MBCC Group as developer. The June 2025 Environdec entries do not list a developer in the public summary we see.
Do key competitors have comparable EPD coverage?
Geoplast shows a published Environdec EPD for Modulo. We did not find public, product‑specific EPDs for BubbleDeck or Daliform Group in the datasets we monitor as of January 27, 2026.
