Quick answer: An acoustic ceiling raft is a horizontal panel suspended flat below the ceiling, like a cloud, while a baffle is a panel hung vertically, like a fin. Both absorb sound from the ceiling void where wall space is limited. Rafts suit standard-height rooms such as classrooms and offices; baffles suit tall or open spaces such as halls and atria, where their vertical faces expose more absorptive area.
When walls are full of windows, whiteboards and displays, the ceiling becomes the largest surface available for acoustic treatment. Rafts and baffles are the two main ways to use it. This guide explains the difference, where each works best, and how to choose.
Browse the full acoustic solutions range, or call 01382 913 913 for advice on ceiling treatment.
What is an acoustic ceiling raft?
A raft (also called a cloud) is a flat panel suspended horizontally a short distance below the ceiling. Its face points down into the room, absorbing sound that rises and reflects off the hard ceiling. Rafts are the natural choice for rooms with standard ceiling heights, such as classrooms, meeting rooms and open-plan offices, where a discreet horizontal panel sits neatly overhead. The Zen Raft is the standard option, with the lighter Zen Light Raft available where ceiling loading or fixing is a concern.
What is an acoustic baffle?
A baffle is a panel hung vertically, dropping down from the ceiling like a fin. Because both faces are exposed to the room, a baffle absorbs sound from more directions and packs more absorptive area into a given footprint. This makes baffles ideal for tall or voluminous spaces, halls, sports halls, atria, industrial rooms, where the extra height gives room for them to hang and the larger air volume needs more absorption. The Zen Baffle and lightweight Zen Light Baffle cover these applications.
Rafts vs baffles: how to choose
| Feature | Ceiling raft (cloud) | Baffle (fin) |
|---|---|---|
| Orientation | Horizontal, flat below ceiling | Vertical, hanging down |
| Best ceiling height | Standard height rooms | Tall or double-height spaces |
| Typical setting | Classrooms, offices, meeting rooms | Halls, atria, sports halls, industrial |
| Absorptive faces | Mainly the downward face | Both faces exposed |
The deciding factor is usually ceiling height and the look you want. In a normal classroom, rafts sit discreetly overhead; in a tall hall, baffles use the height to add a lot of absorption without taking any wall or floor space.
Where ceiling treatment makes the biggest difference
- Classrooms with full walls of windows and displays, where wall panels alone are not enough
- Open-plan offices where reverberation builds across a large floor area
- Sports halls and gymnasiums, where hard surfaces and height create severe echo (see our guide to specifying acoustic panels for school sports halls)
- Atria and dining halls, where high ceilings and crowds make speech hard to follow
Ceiling treatment is often combined with wall panels for the best result. For the full picture in a school setting, see our complete guide to acoustic panels for classrooms.
Frequently asked questions
What is the difference between a ceiling raft and a baffle?
A ceiling raft (or cloud) is mounted horizontally, flat below the ceiling, presenting its face downward into the room. A baffle is mounted vertically, hanging down like a fin, so both of its faces are exposed to sound. Rafts suit standard-height rooms; baffles suit tall spaces where their vertical orientation adds more absorptive area.
Are ceiling rafts or baffles more effective?
Neither is universally better; effectiveness depends on the room. In standard-height rooms, rafts are usually the better fit and sit more discreetly. In tall or double-height spaces, baffles are more effective because their exposed vertical faces add more absorption and the height allows them to hang. Many large spaces use a combination.
When should I use ceiling treatment instead of wall panels?
Use ceiling treatment when wall space is limited, for example a classroom with full walls of glazing and displays, or when a room is large and needs absorption spread across a big floor area. In practice, the best results often come from combining ceiling rafts or baffles with some wall panels.
Will ceiling rafts work in a room with a low ceiling?
Rafts are designed to be suspended a short distance below the ceiling, so they work well in standard-height rooms. In very low rooms there may be limited space to drop them, in which case wall panels or a directly-fixed ceiling treatment may be more practical. An acoustic assessment will confirm the best approach.
Are lightweight rafts and baffles as effective as standard ones?
Lightweight versions such as the Zen Light Raft and Zen Light Baffle are designed for easier suspension where ceiling loading or fixings are a concern, while still providing effective sound absorption. They are a practical choice where a standard unit would be difficult to support; the right option depends on the ceiling structure.
Get the right ceiling treatment for your space
Browse the full acoustic solutions range, including Zen rafts and baffles, or book a free acoustic assessment. Call 01382 913 913 or email info@presentationspaces.co.uk.