The 7 Types of Open Ceilings
Blog info
Date
Author
Rockfon
Reading time
3 minutes
Topics
Interior Design
Quick summary:Explore 7 types of open ceilings with sound absorption that leave the plenum exposed for a raw, industrial aesthetic and easy access to building services.
Explore 7 types of open ceilings with sound absorption that leave the plenum exposed for a raw, industrial aesthetic and easy access to building services.
Often associated with an industrial aesthetic, open ceilings leave the soffit and building services exposed to create a more spacious interior while showing off the building's original construction. Keeping the plenum accessible also simplifies maintenance and future modifications to HVAC and building services where ongoing access is important.
The trade-off, however, is often in acoustics. Concrete, steel, ductwork, and exposed services reflect sound, causing reverberation to build quickly and making the space less comfortable for its users.
To resolve that, acoustic treatment can be introduced selectively to control sound while preserving the openness and visual character that make open ceilings so appealing.
From suspended baffles and floating ceiling panels to hybrid plenum arrangements and direct-fix acoustic solutions, explore the main types of open ceilings and discover where each approach works best.
Baffle Ceiling
A baffle ceiling consists of vertically suspended acoustic elements such as Rockfon Contour that absorb sound while keeping the plenum visually open. The spacing between the baffles allows services and structure to remain visible, making this open ceiling type well suited to interiors with exposed soffits. The acoustic baffles can be arranged in parallel rows or in more expressive layouts, introducing rhythm while supporting acoustic comfort.
Floating Ceiling Panels
Floating ceiling panels use individually suspended acoustic panels such as Rockfon Eclipse or Rockfon Canva Island panels positioned below the soffit to absorb excess noise without closing the ceiling. Available in a range of shapes, sizes, and colours, the panels can be suspended at different heights to define zones, frame circulation routes, or even integrate lighting while maintaining an open ceiling.
Direct Fix Ceiling Tiles
A direct-fix ceiling uses acoustic ceiling tiles bonded directly to the soffit, preserving the maximum ceiling height while improving acoustic comfort. Without the need for a suspended grid, this ceiling type is a convenient way to reduce reverberation in spaces where maintaining room height is a priority or where suspended ceilings are not practical. Rockfon acoustic ceiling tiles with the B edge can be installed using the adhesive method.
Hybrid Plenum Ceiling
A hybrid plenum ceiling combines suspended acoustic ceiling areas with exposed services within the same space. The acoustic treatment is introduced only where required, while other areas remain open – or feature suspended acoustic solutions such as the method featured this image – to reveal the structure and building services. This image features Rockfon Color-all acoustic ceiling tiles in combination with Rockfon Eclipse in the Square shape.
Floating Raft Ceiling
A floating raft ceiling consists of largescale suspended ceiling sections positioned below the soffit to provide acoustic treatment while leaving the surrounding plenum exposed. The rafts can be created using framed modular ceiling systems such as Rockfon OneFrame or oversized floating ceiling panels.
Open Beam Ceiling
An open beam ceiling leaves structural beams exposed while introducing acoustic solutions such as Rockfon Color-all or the seamless solution Rockfon Mono Acoustic between them. This technique preserves the architectural rhythm of the structure while reducing reverberation in the room. Depending on the design and noise control strategy, the acoustic solutions can be installed selectively.
Mixed Suspended Solutions
A mixed suspended ceiling combines two or more suspended acoustic solutions – such as baffles, floating panels, rafts, or ceiling tiles – all within the same space. Each installed solution responds to the different acoustic or spatial requirements, allowing for variety, zoned areas, and a highly dynamic ceiling composition.
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