Acoustic Ceiling Systems — Spec Guide
A clear-eyed comparison of Fellert Even Better and USG Ensemble — covering finish quality, acoustic performance, repairability, flexibility, and total lifecycle value.
Fellert wins on seven of eight criteriaThe Contestants
Both are marketed as seamless acoustic ceiling solutions. Both eliminate the grid of traditional ACT. Beyond that, the similarities are thin.
Fellert Even Better
Cotton-fiber and perlite plaster applied over fiberglass acoustic board. Developed in Sweden, refined over decades. The original seamless acoustic system — and still the benchmark everything else is measured against.
USG Ensemble
Perforated gypsum panels with mineral wool backer, installed on a suspended grid. Marketed as a plaster alternative at half the cost. Installs with standard drywall techniques, which is both its selling point and its limitation.
Head to Head
Eight categories that matter to architects, owners, and contractors.
| Category | Fellert Even Better | USG Ensemble |
|---|---|---|
| Finish Quality | True silk or stone finish — comparable to painted drywall. High LRV. Winner | Textured aggregate surface. Independent reviews compare it to a parking garage ceiling. |
| Sound Absorption (NRC) | Consistently higher NRC across tested configurations. Cotton fiber outperforms polystyrene. Winner | Up to NRC 0.90 at best configurations — competitive but falls short of Fellert across the board. |
| Repairability | Patch-repairable in place — no ceiling replacement needed for penetrations or damage. Winner | Panel-based system. Damage or new penetrations require panel replacement, often visible seams. |
| Curves & Shapes | Handles curves, vaults, contoured surfaces. No control joints required. Winner | Limited curve options added recently. Original system was flat only. Control joints typically required. |
| Custom Finishes | Any RAL/NCS color. Stone, marble, concrete, silk — only manufacturer offering this range. Winner | White, black, or custom color. No decorative finish options beyond color. |
| Warranty | 5-year system warranty. Winner | 1-year warranty. |
| Lifecycle Cost | Higher upfront, lower long-term. Patch repair vs full replacement changes the math on large projects. Winner | Lower upfront by up to 50%. But panel replacement costs erode that advantage over time. |
| First Cost | Premium pricing. Installed cost runs significantly higher than USG. | Up to 50% lower installed cost vs acoustic plaster. Clear budget advantage. Winner |
By the Numbers
Why It Matters
Repairability
When the Chihuly Garden and Glass museum changed its exhibition in 2018, new lighting had to be cut into the ceiling. Because the system was Fellert, the penetrations were patched invisibly — no replacement, no visible seams. With a panel-based system like USG Ensemble, new penetrations mean visible panel swaps. On a long-lived building, the repair cost delta is substantial.
Finish Quality
Fellert's cotton-fiber plaster coat is inherently smooth and carries high light reflectance values. USG Ensemble's synthetic polystyrene aggregate creates a visible texture that independent comparators describe as resembling a parking garage ceiling. For high-end interiors — hospitality, corporate headquarters, cultural institutions — that difference disqualifies USG at the spec stage.
Flexibility
Fellert's cotton-based plaster is slightly elastic, which eliminates the cracking risk that forces control joints in harder aggregate systems. This also enables curved surfaces, barrel vaults, and contoured ceilings that a panel system simply cannot follow. The design vocabulary available to an architect specifying Fellert is fundamentally broader.
Acoustics
Cotton fiber absorbs sound differently than mineral wool or polystyrene aggregate. The Fellert substrate and plaster coat work together as a tuned system, consistently achieving higher NRC values across frequency bands than USG Ensemble at comparable configurations. For spaces where speech intelligibility is a design requirement — airports, courts, classrooms — that advantage is measurable.
The Verdict
For any project where finish quality, long-term performance, and design flexibility matter — and where the owner will occupy the building for more than a few years — Fellert is the correct specification. The first-cost premium is real. The value case is stronger.
When to specify USG Ensemble: Budget-constrained projects where the acoustic benefit of a seamless ceiling is required but the finish premium of true plaster cannot be justified. USG Ensemble earns its place in value-driven commercial construction — it just doesn't compete with Fellert on any performance or quality axis.