Mineral Fiber Ceiling Clouds | Acoustic Ceiling Panels
Mineral Fiber Ceiling Clouds are free-hanging mineral wool panels suspended as separate islands below the slab, instead of a wall-to-wall grid ceiling. Each cloud absorbs sound on its face and exposed edges, so a room gets strong echo control while ducting, sprinklers and the structural soffit stay open. PackSound supplies mineral fiber acoustic clouds in India with NRC 0.55 to 0.90, Class A non-combustible fire rating and sag resistance up to 99% RH, for offices, schools, hospitals and public buildings.
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What Are Mineral Fiber Ceiling Clouds?
A mineral fiber cloud is a rigid ceiling panel made from wet-felted mineral wool, hung flat from the slab on a cloud frame kit or cables. Sound reaching the ceiling enters the porous mineral wool and loses energy inside the fibres. Because the cloud hangs in free air, its top face and edges absorb as well, not just the room-facing side. Clouds are placed over the zones that need control most, such as workstations, meeting tables or classroom seating, which makes them a practical choice for exposed-slab interiors and for retrofits where a full acoustic ceiling is not possible. Typical coverage is 40 to 60 percent of the ceiling in open offices and up to 70 percent in auditoriums and call centres.
| Parameter | Detail |
|---|---|
| Material | Wet-felted mineral wool fiber core |
| Shapes | Rectangular, square or curved, custom on request |
| Thickness | 15 mm, 19 mm or 25 mm |
| NRC | 0.55 to 0.90 depending on grade |
| CAC | Up to 40 (ASTM E1414) |
| Edge options | Square, tegular or bevelled |
| Suspension | Cloud frame kit, cables or drop grid |
| Feature | Benefit | What It Means for You |
|---|---|---|
| High sound absorption | NRC up to 0.90 per ASTM C423 | Cuts reverberation so speech is clearer in busy rooms. |
| Class A fire rating | Non-combustible mineral wool core | Suitable for offices, schools, hospitals and other public buildings. |
| Humidity resistant | Sag resistant up to 99% RH | Panels stay flat in humid climates and air-conditioned spaces. |
| High light reflectance | LR 0.80 to 0.88 | Brighter rooms with less artificial lighting needed. |
| Keeps exposed ceiling look | No wall-to-wall grid required | Treat only the zones that need it and keep services visible. |
| Lightweight | Easy to hang and reposition | Quick installation with minimal slab loading. |
| Long service life | 15 to 25 years with humidity control | Low lifetime cost for commercial interiors. |
Corporate & Open-Plan Offices
Reduce chatter over workstation zones.
Schools & Classrooms
Support clear speech for teachers and students.
Hospitals & Clinics
Quieter waiting and reception areas.
Auditoriums & Lecture Halls
Control reflections from high ceilings.
Cafeterias & Food Courts
Lower noise build-up at busy hours.
Airports & Transit Areas
Echo control in large public halls.
Hotels & Retail Spaces
Comfortable acoustics in lobbies and stores.
| No. | Step | Action |
|---|---|---|
| 1 | Site survey | Measure ceiling height, slab condition and existing RT60 |
| 2 | Acoustic design | Set cloud size, quantity and coverage percentage |
| 3 | MEP coordination | Mark clearance around sprinklers, lights and ducts |
| 4 | Anchoring | Fix anchors or cloud frame points into the slab |
| 5 | Suspension | Hang clouds on frame kit or cables at the set drop |
| 6 | Alignment | Level each cloud and align edges with the layout |
| 7 | Verification | Re-measure RT60 and hand over documentation |
Technical Data Sheet (TDS)
| Property | Value |
|---|---|
| Product | PackSound Mineral Fiber Ceiling Cloud |
| Core | Wet-felted mineral wool fiber |
| Density | 280 to 400 kg/m³ |
| Thickness | 15 mm, 19 mm, 25 mm |
| Sound absorption | NRC 0.55 to 0.90, tested per ASTM C423 |
| Sound attenuation | CAC up to 40, tested per ASTM E1414 |
| Fire performance | Class A, non-combustible |
| Light reflectance | 0.80 to 0.88 |
| Humidity resistance | Up to 99% RH, sag resistant |
| Edge options | Square, tegular, bevelled |
Frequently Asked Questions:
01Do mineral fiber clouds reduce echo?
02What NRC is good for an office ceiling cloud?
03Are mineral fiber clouds fire rated?
04Do mineral fiber clouds contain asbestos?
05Can mineral fiber clouds be painted?
06Will clouds sag in humid weather?
07How long do mineral fiber clouds last?
08Can clouds be made in custom shapes?
09Do ceiling clouds block sound between floors?
10How are mineral fiber clouds installed?
Get a Mineral Fiber Ceiling Cloud Quote
Treating an open office, classroom, hospital or exposed-slab interior with echo problems? PackSound supplies and installs Mineral Fiber Ceiling Clouds across India, with NRC up to 0.90, Class A fire rating and a site-specific layout.
Enquire Now for a Free RT60 Assessment & Project Quote