High-CAC Acoustic Ceiling Tile
High-CAC ceiling tile — speech privacy between adjacent rooms.
The High-CAC ceiling tile is engineered for speech privacy — reduces ceiling-plenum transmission between adjacent offices and meeting rooms while retaining strong absorption on the room face.
Send us the room dimensions and target reverb time — we’ll return a coverage plan and estimate.
Why specify the High-CAC Acoustic Ceiling Tile
- Open-Cell, Fiber-Free
TECHLITE® open-cell melamine face — no loose fibers, safe for occupied rooms.
- Clean, Smooth Finish
Aesthetically pleasing beveled face reads clean from below in any grid ceiling.
- Class A Fire Rated
TECHLITE® melamine foam is Class A fire-rated per ASTM E 84.
- Viscoelastic Damping Layer
Bonded damping backer converts vibration to heat and blocks plenum transfer.
- Highly Sound-Absorptive (NRC)
Room-side TECHLITE® face controls reverb across speech and music frequencies.
- High Sound-Blocking (CAC)
Dense plenum-side backer raises Ceiling Attenuation Class for speech privacy between rooms.
- High Light Reflectance
Light room-side face keeps rooms bright and reduces reliance on artificial lighting.
- Easy to Install
Drops straight into 9/16" or 15/16" T-bar grids — no field modification.
- LEED-Point Eligible
Contributes toward LEED credits on qualifying commercial projects.
Where the High-CAC Acoustic Ceiling Tile fits
- Classrooms
- Corridors
- Private / Open-Plan Offices
- Healthcare
- Privacy Rooms
- Movie Theaters
- Recording Studios
- Commercial / Retail
- Multi-Family Residential
- Rooms requiring improved speech privacy or noise reduction through the ceiling
NRC Gauge
Independent absorption testing on TECHLITE® melamine foam. 2″ material delivers better than 90% absorption at 2000 Hz — combined with Class A fire rating and low weight, TECHLITE® is well suited to speech-privacy ceilings.
- SAA
- 0.78
- Mounting
- Type A
Absorption results tested in accordance with ASTM C423-09a — independent third-party acoustic lab report supplied by the manufacturer.
NRC = Noise Reduction Coefficient, the average of the 250, 500, 1000, and 2000 Hz absorption coefficients rounded to the nearest 0.05. SAA = Sound Absorption Average across twelve one-third-octave bands (200–2500 Hz). Mounting follows ASTM E795 (Type A = direct-to-hard-surface).
- NRC 0.00–0.30: Reflective surface — will not meaningfully reduce echo.
- NRC 0.30–0.60: Modest absorption — some reverb reduction.
- NRC 0.60–0.85: Strong absorption — noticeable clarity and comfort gains.
- NRC 0.85+: Studio / broadcast-grade absorption.
Higher NRC = more sound absorbed on impact. NRC only measures absorption within a room; it is not a soundproofing (transmission-loss) rating.
| Finish | Thickness | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | SAA | NRC | Mount |
|---|---|---|---|---|---|---|---|---|---|---|
| White | 1.50" | 0.17 | 0.28 | 0.84 | 0.99 | 1.03 | 1.04 | 0.78 | 0.80 | A |
| 2.00" | 0.23 | 0.48 | 1.08 | 1.19 | 1.16 | 1.11 | 0.97 | 1.00 | A | |
| 3.00" | 0.45 | 0.87 | 1.26 | 1.07 | 1.06 | 1.10 | 1.05 | 1.05 | A | |
| Light Grey | 1.50" | 0.17 | 0.28 | 0.86 | 0.99 | 1.02 | 1.02 | 0.79 | 0.80 | A |
| 2.00" | 0.20 | 0.51 | 1.05 | 1.05 | 1.03 | 1.05 | 0.91 | 0.90 | A | |
| 3.00" | 0.36 | 0.90 | 1.24 | 1.04 | 1.02 | 1.09 | 1.05 | 1.05 | A | |
| ObsidianOfficial test results pending; performance expected to align with TECHLITE® light grey melamine foam. | 1.50" | 0.17 | 0.28 | 0.86 | 0.99 | 1.02 | 1.02 | 0.79 | 0.80 | A |
| 2.00" | 0.20 | 0.51 | 1.05 | 1.05 | 1.03 | 1.05 | 0.91 | 0.90 | A | |
| 3.00" | 0.36 | 0.90 | 1.24 | 1.04 | 1.02 | 1.09 | 1.05 | 1.05 | A |
Product Specs
- Panel size
- 24" × 24" and 24" × 48" drop-in
- Material
- TECHLITE® Flexible Open-Cell Melamine Foam with viscoelastic damping layer
- Density
- Light Grey 0.56 ± 0.09 lb/ft³ · Natural 0.47 ± 0.13 lb/ft³
- Service temperature
- −40°F to 350°F
- Fire rating (Light Grey)
- ASTM E 84 Class A · Flame Spread 10 / Smoke Developed 55
- Fire rating (Natural)
- ASTM E 84 Class A · Flame Spread 5 / Smoke Developed 20 · CAN/ULC S102 · Flame Spread 0 / Smoke Developed 30
- Mounting
- Drops into 9/16" or 15/16" T-bar grid
- Best use
- Speech privacy between adjacent rooms plus room-side reverb control
- Profile
- 1.75" contoured beveled face over damping backer
Install guide
Downloads & documentation
Manufacturer datasheets, install instructions, fire-rating test summaries, and certifications for the High-CAC Acoustic Ceiling Tile.
Install guide download · install guide available separately.
What's included (1 file)
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Not sure how many you need?
Share the room dimensions and how the space is used — we’ll return a treatment plan with panel count, placement, and product mix targeted to your reverb-time goal.