For projects in Cape Town
Auditorium acoustics and soundproofing in Cape Town
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem. Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
- Reverberation time
- Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
- Early reflections
- Shaped surfaces that send energy to the rear seats rather than absorbing everything.
- Rear wall
- The single worst surface in most halls, and the first one to treat.
- Quote
- From a plan and a section, within 48 hours
01 / Start here
The material, and what it actually does on a Cape Town job
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem.
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
Work reaching us from Cape Town is mostly hotels and restaurants, heritage conversions, offices, apartments, schools, studios.
- The port is at the city Direct sea into Cape Town avoids the long inland haul, which makes the landed cost and the date both easier to hold.
- Heritage fabric stays put Older buildings in the city cannot be structurally altered. Work has to be internal, shallow and ideally reversible.
- Hospitality is the market Hotels and restaurants where the room is part of what the guest is paying for, judged when it is completely full.
- Reverberation time Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for auditorium acoustics are on the main product page. This page covers what that means for a project in Cape Town.
02 / The build-up
The build-up, layer by layer
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Layer 1
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Cape Town, split units and generator sets, with backup generation running often enough that its enclosure matters as much as the HVAC.
Direct fix. Mechanically fixed to the soffit or wall. Durable and simple.
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Layer 2
Wooden slat acoustic panels
Timber slats on an acoustic backing. In Cape Town, church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
Slats on felt backing. The standard. Absorption comes from the backing behind the gaps, so the slat gap ratio is an acoustic decision, not only a visual one.
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Layer 3
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Cape Town, classrooms are hard walled with high ceilings and large class sizes, and school halls double as assembly and performance spaces.
Over a porous backing. Panel over mineral or PET backing where the room needs genuine low mid control.
We would rather argue about the build-up at design stage than on site. See how we support architects.
03 / Local conditions
What decides the build-up in Cape Town
- The port is at the city
Direct sea into Cape Town avoids the long inland haul, which makes the landed cost and the date both easier to hold.
- Heritage fabric stays put
Older buildings in the city cannot be structurally altered. Work has to be internal, shallow and ideally reversible.
- Hospitality is the market
Hotels and restaurants where the room is part of what the guest is paying for, judged when it is completely full.
- Wind and coastal damp
PET felt does not absorb moisture or feed mould, which matters on exposed coastal elevations.
- Assembly and performance rooms
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
- School and campus buildings
Classrooms are hard walled with high ceilings and large class sizes, and school halls double as assembly and performance spaces.
04 / Room by room
Space by space, for Cape Town briefs
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Reverberation time
Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Direct sea into Cape Town avoids the long inland haul, which makes the landed cost and the date both easier to hold.
- Wood wool acoustic panels, 1200 x 600 mm
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- Ceiling baffles and clouds, Made to the drawing, standard and custom
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Early reflections
Shaped surfaces that send energy to the rear seats rather than absorbing everything. Older buildings in the city cannot be structurally altered. Work has to be internal, shallow and ideally reversible.
- Wood wool acoustic panels, 20 mm
- Wooden slat acoustic panels, 2440 x 192 mm and 2440 x 128 mm
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
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Rear wall
The single worst surface in most halls, and the first one to treat. Hotels and restaurants where the room is part of what the guest is paying for, judged when it is completely full.
- Wood wool acoustic panels, 400 kg per cubic metre
- Wooden slat acoustic panels, 14, 16 and 18 mm
- Ceiling baffles and clouds, ASTM C423
For a Cape Town interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Durability
What the Cape Town climate rules in and rules out
Cape Town is hot summers, mild winters and a distinct wet season, and that narrows the material list before acoustics is discussed.
PET felt handles the wet months without absorbing moisture or feeding mould. Timber and wood wool want a ventilated cavity and a stable indoor RH.
The failure we design against here is wet-season humidity behind linings.
Where a consultant is already engaged on a Cape Town project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
06 / Straight talk
The six errors that cost the most
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Absorbing the whole room and losing the back rows
It sounds like a small detail until the room is finished and the complaint arrives.
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Adding speakers to fix a reverberation problem
It sounds like a small detail until the room is finished and the complaint arrives.
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Ignoring the rear wall because it is behind the audience
This is the one that comes back as a second fit-out rather than a snag.
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Treating it as a generic Cape Town job
Direct sea into Cape Town avoids the long inland haul, which makes the landed cost and the date both easier to hold.
05 / Supply
What the route into Cape Town actually looks like
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Cape Town, then a short road run to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea into Cape Town |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 4 to 7 working days. Grooved panels and custom colours take longer, and we say so before you order, not after.
Sea freight direct into Cape Town, then a short road run to site. Air freight for samples and urgent quantities.
Questions from Cape Town projects
What makes auditorium acoustics and soundproofing different in Cape Town?
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level. Direct sea into Cape Town avoids the long inland haul, which makes the landed cost and the date both easier to hold.
Where should the budget go first on a Cape Town project?
Reverberation time. Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Early reflections. Shaped surfaces that send energy to the rear seats rather than absorbing everything.
Do you have an office or installation team in Cape Town?
No. We manufacture in India and supply into Cape Town. We give you drawings, build-ups, a BOQ and material that arrives complete, and we will tell you plainly when a job needs a local contractor we cannot be.
How does material get to a Cape Town site?
ships from: Palwal, Haryana, India, arrives at: Cape Town, then a short road run to site, dispatch: 4 to 7 working days. Standard items dispatch in 4 to 7 working days. Grooved panels and custom colours take longer, and we say so before you order, not after.
What goes wrong most often on this kind of project?
Absorbing the whole room and losing the back rows. Adding speakers to fix a reverberation problem.
What do you need from us to quote?
A plan, a section through the critical partition or ceiling, and what the room is for. From that we can give a build-up and a BOQ rather than a price per square foot.
Next step
Send a plan and a section, get a real build-up
A plan and a section is enough. We will come back with a build-up, a BOQ and a delivered date, and we will say so if what you are asking for will not work.