Block Noise From Open Plenum Ceilings
Quiet Cap Ceiling Tile Covers are soundproofing enhancements that sit directly over existing acoustic ceiling tiles within a suspended ceiling grid. Each cover is constructed using a high-mass vinyl barrier sandwiched between two layers of acoustical fiberglass insulation. This multi-layered design combines the mass necessary to block sound transmission with the absorptive properties that reduce reverberation within the plenum.
Because they are die-cut to match common ceiling tile dimensions (e.g., 2' x 2' or 2' x 4'), Quiet Caps are easy to install without modification to the existing tile system. Simply lift a tile, place the Quiet Cap over it, and return it to the grid. The covers rest neatly above the tiles without affecting ceiling height or aesthetics.
Quiet Caps are Class A fire rated and suitable for commercial buildings, schools, healthcare settings, offices, and retail environments—anywhere that acoustic control and ceiling system integrity are important.
Key Benefits of Quiet Cap Ceiling Tile Covers
One of the primary benefits of Quiet Cap Covers is their ability to minimize cross-talk and noise bleed between rooms, offices, and conference areas. In open plenum designs or spaces with shared ceiling cavities, standard ceiling tiles offer minimal sound containment. Quiet Caps form a barrier that helps prevent airborne sound from passing through to adjacent areas.
The layered construction of fiberglass and mass loaded vinyl (MLV) means Quiet Caps deliver both absorption and sound blocking in a single solution. The fiberglass helps trap sound waves and reduce reverberation within the plenum, while the dense vinyl core adds mass to stop noise transmission. This dual-function design provides a typical sound reduction of 5–10 dB depending on the room layout and ceiling conditions.
Quiet Caps are also:
- Easy to install: No adhesives, fasteners, or structural alterations required
- Compatible with existing ceilings: Works with standard 2x2 and 2x4 tile sizes
- Non-intrusive: Sits above the ceiling tile without changing the visible aesthetic
- Fire safe: Class A fire-rated for building code compliance
- Customizable: Available in special sizes or thicknesses upon request
Specifications
Size: Die-cut to fit above 2x2 or 2x4 ceiling tiles, lights, and fixtures
Thickness: 1.5"
Weight: 1.5lbs/sqft
STC: 29
Composition
Core Material: 1lb/sqft mass loaded vinyl sandwiched between two 1" layers of fiberglass
Common Applications
- Corporate offices
- Medical facilities
- Educational environments
- Call centers and coworking spaces
- Retail and banking spaces
Frequently Asked Questions
A: Quiet Cap Ceiling Tile Covers are an excellent choice in any commercial or institutional space where unwanted noise travels between rooms via the ceiling plenum. They are particularly beneficial in environments such as offices, schools, hospitals, and shared tenant spaces where speech privacy, comfort, and concentration are key concerns. If you’ve noticed that conversations, phone calls, or even typing can be heard in adjacent rooms, especially above drop ceilings, Quiet Caps provide a fast and efficient remedy. They are also ideal for renovations where acoustical improvements are needed without removing or replacing the entire ceiling grid.
A: Installing Quiet Cap Covers is incredibly straightforward and non-disruptive. Simply remove a ceiling tile from the grid, place the Quiet Cap cover over the top surface of the tile, and return both into the ceiling. The precision die-cut sizing ensures a snug fit, and the added mass does not interfere with tile alignment or ceiling height.
A: Quiet Cap Covers can deliver a typical reduction of 5 to 10 decibels in sound transmission through the ceiling, depending on variables such as tile type, ceiling height, plenum space, and the nature of the sound being addressed. This level of attenuation can make a significant difference in reducing voice spillover, mechanical noise transmission, and general ambient disruptions. In many real-world applications, the perceptual improvement in privacy and quietness is greater than the decibel rating alone might suggest, especially in speech-dominated environments.
A: Our Quiet Cap products are compatible with nearly all standard acoustic ceiling tiles found in 2' x 2' and 2' x 4' formats. These sizes cover the vast majority of commercial suspended ceiling grids. Custom dimensions are also available upon request, making them suitable for architectural spaces with non-standard tile layouts or retrofit challenges. The flexible, forgiving construction of the Quiet Cap makes it adaptable to both older and newer tile systems.
A: Each Quiet Cap is constructed with a tri-layer configuration designed for optimal acoustic performance. The interior layer is mass loaded vinyl (MLV), which acts as the primary sound barrier by adding dense mass to block airborne noise. This is sandwiched between two layers of high-density fiberglass insulation, which absorb and diffuse sound energy while also contributing to thermal control. The materials are flexible but rugged enough for long-term use, and their low profile allows for easy integration above ceiling tiles without compromising clearance.
A: Yes. Quiet Cap Ceiling Tile Covers are tested and certified to meet Class A fire ratings in accordance with ASTM E84 standards. This means they meet strict codes for flame spread and smoke development, making them appropriate for nearly all commercial and institutional settings. The materials used resist ignition and limit the spread of fire, providing added safety assurance when installed in overhead plenum spaces that may contain ductwork, cabling, and lighting systems.
A: Yes. Quiet Cap Covers are designed to be fully removable and reusable without damaging the tiles or the ceiling grid. This feature makes them ideal for leased spaces or dynamic environments where future changes to layout or acoustics are anticipated. Even when installed, Quiet Caps allow full access to the plenum space for servicing HVAC systems, sprinkler lines, and electrical wiring. Maintenance teams can lift the tile as they normally would, perform their work, and reinstall the tile and Quiet Cap with no complications. This ease of access preserves operational efficiency while maintaining high acoustical performance.