Acoustic Panel Brands Compared: Rockwool, Ecophon, Armstrong, Knauf, Autex, Primacoustic (2026)

Choosing an acoustic panel brand is a decision that will live in your ceiling or on your walls for 15 to 25 years. The wrong choice does not merely underperform acoustically — it increases maintenance costs, complicates future renovations, and in some cases creates fire safety liabilities that only surface during a compliance audit years after installation.

The acoustic panel market in 2026 is dominated by a handful of manufacturers whose products appear in specifications worldwide. Yet these brands differ substantially in material composition, absorption characteristics across the frequency spectrum, aesthetic flexibility, environmental certifications, and — critically — price. A specifier who treats all "NRC 0.85" panels as interchangeable will discover, often too late, that octave-band performance at 250 Hz varies by a factor of two between brands at the same headline NRC rating.

This comparison examines seven brands that collectively account for the majority of architectural acoustic panel installations globally: Rockwool, Ecophon (Saint-Gobain), Armstrong Ceiling Solutions, Knauf AMF, Autex Acoustics, OWA, and Primacoustic. For each brand, we evaluate product range, absorption performance, pricing, fire safety, sustainability, aesthetics, and optimal use cases.

Brand-by-Brand Analysis

1. Rockwool (ROCKFON)

Headquarters: Hedehusene, Denmark (Rockwool Group); ROCKFON acoustic ceilings division based in Chicago, USA Founded: 1937 Market presence: Global — strong in Europe, North America, Middle East, Asia-Pacific

Rockwool is the world's largest producer of stone wool insulation, and their acoustic ceiling division ROCKFON leverages this material expertise into a comprehensive range of acoustic ceiling tiles, wall panels, and baffles. The core advantage is the stone wool substrate: dense, dimensionally stable, inherently non-combustible, and effective across a broad frequency range.

Product range: ROCKFON offers over 40 product lines including Tropic, Alaska, Sonar, Medicare, and the premium Color-all range. Products span ceiling tiles (tegular, square-lay, concealed grid), wall absorbers, vertical baffles, and islands. Thicknesses range from 15 mm (basic tiles) to 50 mm (high-performance wall panels).

Typical NRC range: 0.85–0.95 for standard ceiling tiles (20–25 mm stone wool); wall panels reach NRC 1.00 at 40–50 mm thickness.

Octave-band strengths: Stone wool excels in mid-to-high frequency absorption. A typical ROCKFON Sonar tile (20 mm) delivers alpha values of 0.25 at 125 Hz, 0.65 at 250 Hz, 0.90 at 500 Hz, 0.95 at 1000 Hz, 1.00 at 2000 Hz, and 0.95 at 4000 Hz. The weakness, as with all thin mineral fiber products, is below 250 Hz — bass absorption requires thicker variants or plenum depth.

Price range: Budget: £18–25/m² (Tropic, basic white); Mid: £28–40/m² (Sonar, Medicare); Premium: £45–70/m² (Color-all custom colors, Canopy islands).

Fire rating: Euroclass A1 (non-combustible, the highest possible European fire rating). ASTM E84 Class A (flame spread index 0, smoke developed index 0). This is a significant competitive advantage in healthcare, education, and high-rise applications where fire codes are stringent.

Sustainability: Rockwool publishes Environmental Product Declarations (EPDs) for all major product lines. Stone wool is made from basalt and recycite (recycled stone wool), with recycled content typically 20–40%. Products are Cradle to Cradle Certified (Bronze to Silver depending on product line). The Rockcycle program accepts old stone wool products for recycling into new products. Carbon footprint: approximately 6–9 kg CO2e/m² for a standard 20 mm ceiling tile.

Aesthetics: White is the default (standard fleece facing). The Color-all range offers 34 standard colors with custom color matching available. Surface textures include smooth, micro-perforated, and fleece. Custom printing is available but limited to the Canopy and Color-all ranges. No wood-look or fabric-wrapped options in the standard range.

Best use cases: Healthcare facilities (Medicare line designed for cleanroom environments), schools (non-combustible, durable, impact-resistant), offices (Sonar range optimized for open-plan Speech Privacy Class), corridors and circulation spaces (high durability, low maintenance). ROCKFON is the default choice when fire safety is the primary specification driver.

2. Ecophon (Saint-Gobain)

Headquarters: Hyllinge, Sweden (part of Saint-Gobain Group since 2002) Founded: 1969 Market presence: Strong across Europe and Scandinavia; growing in Middle East, Asia-Pacific, and North America

Ecophon has built its reputation on the principle that acoustic comfort directly affects human performance. Their product development is driven by research partnerships with universities and healthcare institutions, resulting in products optimized for specific room types rather than generic absorption specifications. The Ecophon product matrix is organized by application — Master for offices, Hygiene for healthcare, Focus for education, Gedina for budget projects — making specification straightforward but potentially confusing for designers accustomed to selecting by material properties.

Product range: Over 30 product families organized by application. Core substrate is glass wool, faced with Akutex coating (a proprietary high-frequency-transparent paint finish). Products include ceiling tiles, wall panels, baffles, free-hanging clouds, and the Solo range of suspended acoustic elements.

Typical NRC range: 0.85–1.00 for ceiling tiles; Solo elements achieve NRC 1.15 (effective absorption exceeds physical area due to edge diffraction).

Octave-band strengths: Ecophon's glass wool substrate provides slightly better low-frequency absorption than equivalent-thickness stone wool. A typical Ecophon Master Rigid 20 mm tile achieves alpha values of 0.30 at 125 Hz, 0.70 at 250 Hz, 0.95 at 500 Hz, 1.00 at 1000 Hz, 1.00 at 2000 Hz, and 1.00 at 4000 Hz. The Akutex coating maintains high-frequency transparency (some painted finishes on competitor products reduce alpha at 4000 Hz by 0.10–0.15).

Price range: Budget: £22–30/m² (Gedina range); Mid: £32–48/m² (Master, Focus); Premium: £55–90/m² (Solo suspended elements, Hygiene Meditec for cleanrooms).

Fire rating: Euroclass A2-s1,d0 (limited combustibility). ASTM E84 Class A. Glass wool is not classified A1 because of the binder content (typically phenol-formaldehyde or bio-based binder), but the practical fire performance difference between A1 and A2-s1,d0 is negligible for most building codes.

Sustainability: Ecophon publishes EPDs for all product families. Glass wool contains 70–80% recycled glass. Akutex FT coating is formaldehyde-free. Products carry Indoor Air Comfort Gold certification (VOC emissions). Carbon footprint: approximately 5–8 kg CO2e/m² for a standard 20 mm ceiling tile. Ecophon's products are recyclable through the Ecophon Recycling Program, though collection infrastructure is primarily available in Scandinavia and select European markets.

Aesthetics: The Akutex finish is the defining visual characteristic — a smooth, white, cleanable surface that resists yellowing. Standard color range is limited (white and off-white dominate). Custom colors are available in the SonoFonic and Solo ranges but at significant price premiums. The Solo range offers design-led shapes (circles, squares, hexagons, baffles) that have become iconic in Scandinavian-designed offices.

Best use cases: Open-plan offices (Master range optimized for D2,S and Lp,A,S,4m per ISO 3382-3), schools and universities (Focus range meets BB93 and ANSI S12.60), healthcare (Hygiene range with cleanable, moisture-resistant surfaces), any project where Scandinavian design aesthetic is valued.

3. Armstrong Ceiling Solutions (now Knauf Ceiling Solutions in some markets)

Headquarters: Lancaster, Pennsylvania, USA (Armstrong World Industries); European operations now partly under Knauf Ceiling Solutions after 2020 acquisition Founded: 1860 (original cork-cutting business); acoustic ceilings from 1960s Market presence: Dominant in North America; strong in Europe (legacy brand recognition remains despite Knauf acquisition of some operations)

Armstrong is the most recognized acoustic ceiling brand in North America and retains enormous market share based on contractor familiarity, widespread distribution, and the broadest product catalog in the industry. The 2020 acquisition of Armstrong's European mineral fiber business by Knauf created some market confusion — in Europe, some former Armstrong products are now sold under the Knauf Ceiling Solutions brand, while Armstrong World Industries retained the North American business and its Architectural Specialties division.

Product range: The broadest in the industry, spanning mineral fiber tiles (Ultima, Optima, Fine Fissured), fiberglass tiles (Cirrus), metal ceilings, wood ceilings, and specialty products. Total product count exceeds 100 lines. The Optima range (fiberglass) delivers the highest acoustic performance; the Fine Fissured range (mineral fiber) is the volume product for commercial offices.

Typical NRC range: 0.55–0.70 for basic mineral fiber (Fine Fissured); 0.70–0.85 for mid-range (Ultima); 0.90–1.05 for premium fiberglass (Optima, Cirrus).

Octave-band strengths: Armstrong's mineral fiber products exhibit a characteristic mid-frequency peak with weaker low-frequency performance. A Fine Fissured tile (15 mm) achieves alpha of 0.15 at 125 Hz, 0.30 at 250 Hz, 0.60 at 500 Hz, 0.75 at 1000 Hz, 0.75 at 2000 Hz, and 0.70 at 4000 Hz. The Optima fiberglass range is substantially better: 0.35 at 125 Hz, 0.80 at 250 Hz, 1.00 at 500 Hz, 1.05 at 1000 Hz, 1.00 at 2000 Hz, and 1.00 at 4000 Hz. The performance gap between Armstrong's budget and premium ranges is the widest of any brand in this comparison.

Price range: Budget: £12–18/m² (Fine Fissured, basic mineral fiber — the cheapest branded option in the market); Mid: £22–35/m² (Ultima, TechZone); Premium: £40–65/m² (Optima, Cirrus); Specialty: £80–150/m² (wood, metal, Architectural Specialties).

Fire rating: Mineral fiber products: Euroclass A1 or A2-s1,d0 depending on facing. ASTM E84 Class A across all ranges. Fiberglass products (Optima, Cirrus): Euroclass B-s1,d0 or A2-s1,d0 depending on composition. Metal and wood products vary.

Sustainability: Armstrong publishes EPDs and has committed to carbon neutrality by 2030 for North American operations. The Sustain portfolio includes products with Cradle to Cradle certification. Armstrong's Ceiling Recycling Program accepts old ceiling tiles for recycling (North America only). Recycled content varies: mineral fiber contains 30–50% recycled material; fiberglass contains 50–70% recycled glass. Carbon footprint: approximately 4–7 kg CO2e/m² for mineral fiber, 5–8 kg CO2e/m² for fiberglass.

Aesthetics: Armstrong offers the widest aesthetic range of any acoustic ceiling brand. Options include mineral fiber (textured, smooth, scored), fiberglass (smooth white), metal (perforated, micro-perforated, solid with acoustic backing), and wood (solid, veneered, slatted). Custom capabilities through the Architectural Specialties division allow curved forms, custom perforations, and digitally printed surfaces.

Best use cases: Budget commercial offices (Fine Fissured is the default "value" specification), high-performance offices where cost matters (Optima offers excellent NRC per dollar), retail and hospitality (metal ceiling expertise), renovation projects (widest grid compatibility — Armstrong's 15/16" Prelude grid is the North American industry standard), any project where contractor familiarity reduces installation risk.

4. Knauf AMF (Knauf Ceiling Solutions)

Headquarters: Grafenau, Germany (Knauf Group) Founded: Knauf Group 1932; AMF Mineralplatten GmbH acquired by Knauf in 2010; Armstrong European operations acquired 2020 Market presence: Dominant in Germany and Central Europe; growing in UK, Middle East, and Asia

Knauf AMF represents the merger of traditional German mineral fiber expertise (AMF) with Knauf's manufacturing scale and, more recently, Armstrong's European product portfolio. The result is a brand with deep technical credentials in the German-speaking market — where DIN standards and detailed octave-band specifications are the norm — combined with increasing global reach.

Product range: Thermatex (mineral fiber ceiling tiles), Heradesign (wood wool panels — a distinctive product with no direct equivalent from other brands in this comparison), Topiq (premium mineral fiber), and the recently integrated Armstrong European ranges. Heradesign deserves special mention: it is a magnesite-bonded wood wool panel that provides visual warmth with acoustic performance, and has become a signature product in European architecture.

Typical NRC range: 0.70–0.90 for Thermatex mineral fiber; 0.55–0.85 for Heradesign wood wool (depending on thickness and backing); 0.85–1.00 for Topiq premium fiberglass.

Octave-band strengths: Knauf AMF publishes particularly detailed octave-band data, including third-octave measurements per DIN EN ISO 354. The Thermatex Alpha range (19 mm, micro-perforated) achieves alpha of 0.20 at 125 Hz, 0.60 at 250 Hz, 0.85 at 500 Hz, 0.95 at 1000 Hz, 0.90 at 2000 Hz, and 0.85 at 4000 Hz. Heradesign Fine (25 mm, with 200 mm cavity) achieves alpha of 0.60 at 125 Hz, 0.90 at 250 Hz, 0.90 at 500 Hz, 0.85 at 1000 Hz, 0.80 at 2000 Hz, and 0.75 at 4000 Hz — notably stronger at low frequencies due to the open texture of wood wool.

Price range: Budget: £15–22/m² (Thermatex basic); Mid: £25–38/m² (Thermatex Alpha, Orbit); Premium: £45–75/m² (Topiq, Heradesign Creative); Specialty: £70–120/m² (Heradesign custom colors, Heradesign Acoustic laminated).

Fire rating: Thermatex mineral fiber: Euroclass A2-s1,d0 (most lines). Heradesign: Euroclass A2-s1,d0 (the magnesite-bonded wood wool is inherently fire-resistant — an important distinction from cellulose-based products). ASTM E84 Class A for products sold in North American markets.

Sustainability: Knauf Group publishes EPDs for all product families. Heradesign uses sustainably sourced spruce wood wool bonded with magnesite — a natural product with low embodied carbon (approximately 3–5 kg CO2e/m²). Thermatex mineral fiber contains 30–40% recycled content. Knauf has committed to science-based emissions reduction targets. Heradesign products are compostable at end of life (the wood wool is biodegradable and the magnesite binder is inert).

Aesthetics: Heradesign is the standout — its exposed wood wool texture is architecturally distinctive and increasingly specified in educational, cultural, and biophilic design contexts. Available in natural wood, white, and a range of painted colors. Thermatex offers standard commercial ceiling aesthetics (smooth, fissured, perforated). Topiq provides premium smooth finishes comparable to Ecophon's Akutex.

Best use cases: Projects in Germany and Central Europe (dominant market position, extensive technical support in German), education and cultural buildings (Heradesign provides visual warmth with acoustic function), projects where DIN compliance documentation is required, biophilic design projects (wood wool is one of the few acoustic products that genuinely looks natural).

5. Autex Acoustics

Headquarters: Auckland, New Zealand Founded: 1967 (acoustic products division from 2007) Market presence: Strong in Australia, New Zealand, UK; growing in North America, Europe, Middle East

Autex occupies a distinctive position in the acoustic panel market. While the other brands in this comparison are primarily mineral fiber or glass wool manufacturers, Autex's core product is polyester fiber (PET) — specifically, panels made from a blend of virgin and recycled PET (from post-consumer plastic bottles). This material distinction drives fundamentally different performance characteristics, sustainability credentials, and aesthetic possibilities.

Product range: Quietspace (wall panels and ceiling tiles), Composition (pinnable wall covering), Frontier (decorative 3D wall tiles), Cube (suspended elements), and Quietspace Lattice (perforated decorative panels). The range is heavily oriented toward wall-mounted applications and decorative acoustic treatments rather than traditional suspended ceiling grid systems.

Typical NRC range: 0.60–0.85 for standard panels (25 mm PET fiber); 0.85–1.00 for 50 mm panels; Quietspace 3D panels with cavity backing reach NRC 0.90+.

Octave-band strengths: PET fiber panels have a different absorption profile from mineral fiber. A typical Autex Quietspace 25 mm panel achieves alpha of 0.10 at 125 Hz, 0.30 at 250 Hz, 0.65 at 500 Hz, 0.90 at 1000 Hz, 0.95 at 2000 Hz, and 0.90 at 4000 Hz. The performance is comparable to mineral fiber at mid-high frequencies but slightly weaker at 250 Hz. At 50 mm thickness, PET fiber catches up: 0.20 at 125 Hz, 0.60 at 250 Hz, 0.90 at 500 Hz, 1.05 at 1000 Hz, 1.00 at 2000 Hz, and 0.95 at 4000 Hz.

Price range: Budget: £28–38/m² (Composition, basic colors); Mid: £40–55/m² (Quietspace panels, standard range); Premium: £60–85/m² (Frontier 3D tiles, Lattice); Custom: £75–120/m² (custom colors, patterns, sizes).

Fire rating: Euroclass B-s1,d0 (PET fiber is combustible but self-extinguishing, with low smoke production). ASTM E84 Class A. This is the main disadvantage versus mineral fiber brands — PET fiber cannot achieve Euroclass A1 or A2, which disqualifies it from some healthcare and high-rise specifications. However, the B-s1,d0 classification meets most commercial building codes.

Sustainability: This is Autex's strongest competitive argument. Quietspace panels contain 60–70% recycled PET (from post-consumer plastic bottles). A standard panel uses approximately 26 recycled PET bottles per square meter. Products carry Global GreenTag certification (Level A). No formaldehyde binders (the PET fiber is thermally bonded). Products are fully recyclable at end of life through Autex's takeback program. Carbon footprint: approximately 4–6 kg CO2e/m² — comparable to mineral fiber despite being a synthetic product, because the recycled PET content offsets virgin material impacts. No skin irritation during handling (a significant practical advantage over mineral fiber and glass wool, which require gloves and respiratory protection during installation).

Aesthetics: Autex's strongest differentiator alongside sustainability. The Quietspace range offers over 60 standard colors with custom color matching. The felt-like surface texture is warm and tactile — fundamentally different from the clinical appearance of mineral fiber. Frontier 3D tiles create geometric wall patterns. Composition panels can be used as pinboard surfaces (useful in education). Digital printing is available across all panel products. Autex panels are frequently specified in design-led hospitality, co-working, and residential projects where the "acoustic panel" must also be the interior design statement.

Best use cases: Design-led commercial interiors (co-working spaces, creative offices, hospitality), education (pinnable Composition panels replace traditional pinboards while adding absorption), residential acoustic treatment (aesthetic acceptance is higher than mineral fiber), projects with strong sustainability mandates (recycled PET story resonates with ESG-focused clients), renovation/retrofit projects where wall-mounted panels are preferred over ceiling grid systems.

6. OWA (Odenwald Faserplattenwerk)

Headquarters: Amorbach, Germany Founded: 1948 Market presence: Strong in Germany, Central/Eastern Europe; growing in Middle East and Asia

OWA is a specialist manufacturer that focuses exclusively on acoustic ceiling tiles — they do not produce wall panels, baffles, or suspended elements. This narrow focus results in deep expertise within their product domain but limits their relevance for projects requiring a complete acoustic treatment system from a single supplier.

Product range: Mineral fiber ceiling tiles organized into performance tiers: Smart (budget), Cosmos (standard), Premium (high-performance), and specialty ranges including Humancare (healthcare), Brillanto (high-light-reflectance for energy efficiency), and Natur (bio-based binders). All products are designed for standard 600x600 mm or 600x1200 mm grid systems.

Typical NRC range: 0.55–0.70 for Smart range; 0.70–0.85 for Cosmos; 0.85–0.95 for Premium.

Octave-band strengths: OWA's mineral fiber formulation is optimized for the 500–2000 Hz speech frequency range. A typical OWA Cosmos (15 mm) achieves alpha of 0.15 at 125 Hz, 0.45 at 250 Hz, 0.75 at 500 Hz, 0.85 at 1000 Hz, 0.80 at 2000 Hz, and 0.75 at 4000 Hz. The Premium range at 20 mm thickness improves this to 0.25 at 125 Hz, 0.65 at 250 Hz, 0.90 at 500 Hz, 0.95 at 1000 Hz, 0.95 at 2000 Hz, and 0.90 at 4000 Hz.

Price range: Budget: £10–16/m² (Smart range — among the cheapest branded acoustic tiles available); Mid: £18–28/m² (Cosmos, standard colors); Premium: £30–45/m² (Premium, Humancare); Specialty: £35–55/m² (Brillanto, custom perforations).

Fire rating: Euroclass A2-s1,d0 for all standard products. Certain Humancare products achieve Euroclass A1. OWA's fire performance is strong across the range.

Sustainability: OWA publishes EPDs and has invested in bio-based binder technology (the Natur range replaces phenol-formaldehyde binder with a starch-based alternative). Recycled content: 30–45% (primarily recycled mineral fiber from manufacturing waste and post-consumer sources). OWA operates a closed-loop manufacturing process where production waste is reintroduced into the production cycle. Carbon footprint: approximately 3–5 kg CO2e/m² — among the lowest in the mineral fiber category, partly due to the company's investment in biomass energy at their Amorbach production facility.

Aesthetics: OWA's aesthetic range is functional rather than design-led. Products are available in white, off-white, and a limited selection of light colors. Surface textures include smooth, fissured, perforated, and micro-perforated. The Brillanto range features a high-light-reflectance surface (LR 0.90) that can reduce artificial lighting requirements. Custom capabilities are limited compared to larger brands.

Best use cases: Budget-conscious commercial projects in Central Europe (excellent price-performance ratio), healthcare facilities (Humancare range with cleanable, antimicrobial surfaces), energy-efficient building design (Brillanto high-reflectance tiles), projects where the ceiling will be a standard white grid system and budget is the primary driver.

7. Primacoustic

Headquarters: Port Coquitlam, British Columbia, Canada (part of the Radial Engineering Group) Founded: 2001 Market presence: North America primarily; growing in Europe and Asia through online distribution

Primacoustic occupies a fundamentally different market segment from the other six brands in this comparison. While Rockwool, Ecophon, Armstrong, Knauf, Autex, and OWA primarily serve the architectural construction market (new buildings, fit-outs, commercial renovations), Primacoustic primarily serves the professional audio market: recording studios, broadcast facilities, home theaters, rehearsal rooms, and increasingly, corporate AV rooms and podcast studios. Their products are designed for wall-mounting and are sold as complete room treatment kits, not as components of a suspended ceiling system.

Product range: Broadway (standard fiberglass panels in various sizes), London (bass traps — corner-mounted low-frequency absorbers), Paintables (fabric-wrapped fiberglass panels designed for custom finishing), Scatter Blocks (small diffusion/absorption hybrid elements), and room kits (pre-configured packages for specific room sizes). The range is compact and focused: approximately 15 product lines versus 40+ for the architectural brands.

Typical NRC range: 0.95–1.10 for Broadway panels (50 mm fiberglass); 0.80–0.95 for London bass traps (measured per ASTM C423 including low-frequency performance); Paintables: NRC 0.95.

Octave-band strengths: Primacoustic's fiberglass panels are thicker than typical ceiling tiles (50 mm versus 15–25 mm), which provides substantially better low-frequency absorption. A Broadway 50 mm panel achieves alpha of 0.30 at 125 Hz, 0.80 at 250 Hz, 1.05 at 500 Hz, 1.10 at 1000 Hz, 1.00 at 2000 Hz, and 1.00 at 4000 Hz. The London bass traps, designed for corner mounting where room modes concentrate, deliver alpha of 0.70 at 125 Hz, 0.95 at 250 Hz, 0.95 at 500 Hz, 0.90 at 1000 Hz, 0.85 at 2000 Hz, and 0.80 at 4000 Hz — the best low-frequency performance of any product in this comparison by a significant margin.

Price range: Budget: £35–50/m² (Broadway standard panels); Mid: £50–70/m² (Paintables, London bass traps); Premium: £60–90/m² (room kits, custom configurations). Note: Primacoustic pricing is typically higher per square meter than architectural ceiling tiles because the products are thicker (50 mm versus 15–25 mm), fabric-wrapped, and designed for exposed wall-mounted installation rather than concealed-grid ceiling installation. The comparison is not entirely like-for-like.

Fire rating: ASTM E84 Class A (flame spread index 15, smoke developed index 50). Euroclass B-s1,d0 equivalent. Primacoustic does not pursue Euroclass A1 or A2 classification because their target market (studios, AV rooms) rarely requires it.

Sustainability: Primacoustic's sustainability story is less developed than the architectural brands. Fiberglass panels contain approximately 50% recycled glass. No EPDs published as of 2026. No Cradle to Cradle certification. No formal takeback/recycling program. The fabric wrapping adds a mixed-material end-of-life challenge. Carbon footprint data is not publicly available.

Aesthetics: Broadway panels are available in 10 fabric colors (neutral palette: black, grey, beige, blue, burgundy). Paintables use a white fabric face designed to accept latex paint for custom color matching. The visual language is "studio equipment" rather than "architectural finish" — panels are frameless with squared edges, designed to be wall-mounted with visible hardware or impaling clips. This aesthetic works in recording studios and AV rooms but is rarely acceptable in corporate lobbies, healthcare facilities, or educational spaces.

Best use cases: Recording studios and broadcast facilities (the brand was designed for this market), home theaters and listening rooms (room kits simplify specification), podcast studios and content creation spaces (growing market), small meeting rooms requiring AV-quality acoustics, any application where low-frequency control is the priority (the 50 mm thickness and corner bass traps address the sub-250 Hz range that ceiling tiles cannot).

Comprehensive Comparison Table

Octave-Band Performance Comparison (Standard Products, 20–25 mm Thickness)

This table compares the octave-band absorption coefficients of each brand's most commonly specified product at standard thickness. This is the data that NRC hides.

The table reveals several patterns that NRC obscures:

1. Ecophon leads at every frequency among the architectural ceiling brands at equivalent thickness, with the Akutex coating maintaining full transparency at 4000 Hz.
2. Autex at 25 mm is weak below 500 Hz — the PET fiber requires 50 mm thickness to match mineral fiber at 250 Hz.
3. Primacoustic's 50 mm thickness dominates but is not a fair comparison with 15–25 mm ceiling tiles — it is twice the thickness and wall-mounted.
4. OWA at 15 mm shows the cost of the thinnest option: alpha drops to 0.45 at 250 Hz, which is problematic for speech clarity in meeting rooms.

Which Brand Should You Choose?

The answer depends on your project type, budget constraints, aesthetic requirements, and regulatory environment. Here is a decision framework:

If fire safety is the primary driver: Rockwool (ROCKFON)

Non-combustible Euroclass A1 stone wool is unmatched. Healthcare, education, high-rise residential, and any project where the fire engineer has significant influence over specifications should default to ROCKFON. The Medicare range adds antimicrobial and cleanroom compatibility. The price premium over budget alternatives is modest (£6–10/m²), and the fire safety documentation is comprehensive.

If acoustic performance per millimeter matters: Ecophon

Ecophon delivers the highest absorption coefficients at equivalent thickness, with the Akutex coating ensuring that the acoustic performance is not degraded by the surface finish. For projects where ceiling void space is limited (common in renovation), Ecophon's ability to deliver NRC 0.90+ at 20 mm thickness is a significant advantage. The application-specific product organization (Master for offices, Focus for schools, Hygiene for healthcare) simplifies specification.

If budget is the primary constraint: OWA or Armstrong Fine Fissured

OWA's Smart range at £10–16/m² and Armstrong's Fine Fissured at £12–18/m² are the most cost-effective branded options. Both deliver adequate acoustic performance for standard commercial ceilings (NRC 0.55–0.70). The trade-off is weaker low-frequency absorption and limited aesthetic options. For developer-grade office fit-outs where the ceiling will be a standard white grid, these are rational choices.

If aesthetics and sustainability are equal priorities: Autex

No other brand in this comparison offers 60+ colors, digital printing, 3D decorative tiles, and 60–70% recycled PET content. Autex is the specification for design-led interiors where the acoustic panel must be a visible, attractive design element. The fire rating limitation (Euroclass B, not A) disqualifies it from some applications, and the higher price (£28–38/m² for budget, versus £10–18/m² for mineral fiber) reflects the design premium.

If low-frequency control is essential: Primacoustic or Knauf Heradesign

Recording studios, broadcast facilities, and music performance spaces need absorption below 250 Hz that thin ceiling tiles cannot provide. Primacoustic's 50 mm Broadway panels and London bass traps are purpose-designed for this. In architectural contexts where a ceiling product must also control bass, Knauf AMF's Heradesign wood wool panels (with 200 mm cavity) achieve alpha 0.60 at 125 Hz — the best low-frequency ceiling performance in this comparison.

If you need a complete system from one supplier: Armstrong or Ecophon

Both Armstrong and Ecophon offer ceiling tiles, wall panels, baffles, clouds, and specialty products that can be combined into a comprehensive acoustic treatment system with consistent aesthetics and coordinated technical documentation. Armstrong's broader range (including metal and wood options) gives it an edge in projects that require mixed ceiling types across different zones.

If you are specifying for the German or Central European market: Knauf AMF

Market familiarity, DIN-standard documentation, local technical support, and the Heradesign product line (which has cult status among German architects) make Knauf AMF the path of least resistance in Germany, Austria, Switzerland, and surrounding markets. The Thermatex range covers standard commercial requirements, and the Heradesign range covers design-led applications.

A Note on Testing and Verification

All NRC values and octave-band absorption coefficients cited in this article are representative of each brand's published test data as of early 2026. Actual performance varies by specific product variant, installation method (direct-fixed versus suspended with air gap), and cavity depth behind the panel. A 20 mm mineral fiber tile directly fixed to a concrete soffit will perform differently from the same tile suspended on a grid with a 200 mm plenum — particularly at 125 Hz and 250 Hz, where the air gap behind the panel acts as a resonant absorber and can improve low-frequency alpha by 0.10–0.20.

Always request the specific product test report (per ISO 354:2003 or ASTM C423) for the installation configuration you intend to use. Brochure NRC values are typically measured with a 200 mm or 400 mm cavity, which may not match your ceiling void depth.

Tools like AcousPlan allow you to model the RT60 impact of different panel selections across the full octave-band spectrum before committing to a specification — replacing guesswork based on single-number NRC ratings with frequency-dependent analysis that reveals how your room will actually perform at 250 Hz, where speech clarity is won or lost.