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For projects in Johannesburg
Cinema and multiplex soundproofing in Johannesburg
Screens stacked beside and above each other, each running full range at high level. Bleed between auditoria is the failure everyone hears, and it is decided by the shell, not the finishes. Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
- Screen to screen
- Independent construction between auditoria, with services broken at the line.
- In room response
- Heavy absorption on side and rear walls so the mix is heard as intended.
- Plant and projection
- Equipment noise into the auditorium, treated at source.
- Quote
- From a plan and a section, within 48 hours
01 / What it is
The product, described honestly, for a Johannesburg brief
Screens stacked beside and above each other, each running full range at high level. Bleed between auditoria is the failure everyone hears, and it is decided by the shell, not the finishes.
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
Work reaching us from Johannesburg is mostly corporate office parks, generator enclosures, retail, hotels, schools, hospitals, studios.
- Generator noise is routine Standby plant runs often enough that it has to be treated as a permanent condition. Enclosure at the source is the only reliable answer.
- Office parks, not street frontage Campus style buildings with large open floors and hard finishes. Speech carries a long way and the ceiling plane has to carry the room.
- The climb from Durban The inland leg is long and it is real. We quote it separately so the programme is built on actual dates.
- Screen to screen Independent construction between auditoria, with services broken at the line.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for cinema soundproofing are on the main product page. This page covers what that means for a project in Johannesburg.
02 / The build-up
The stack, in the order it is installed
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Layer 1
Acoustic panels
The full absorber range rather than one product: plain PET felt, printed felt, grooved panels and fabric finishes, chosen by how the room is used and how it has to look. In Johannesburg, split units and generator sets, with backup generation running often enough that its enclosure matters as much as the HVAC.
Wall array. Panels placed at first reflection points rather than spread evenly. Fewer panels, better result.
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Layer 2
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Johannesburg, church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
Loose lay on tackifier. Tiles lifted individually for access under a raised floor, which is why tile beats broadloom in an office.
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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 Johannesburg, classrooms are hard walled with high ceilings and large class sizes, and school halls double as assembly and performance spaces.
On a 25 to 50 mm air gap. The same panel on battens. The air gap moves absorption down in frequency at no extra material cost, and is the cheapest improvement available.
We would rather argue about the build-up at design stage than on site. See how we support architects.
03 / In this market
The Johannesburg conditions that change the answer
- Generator noise is routine
Standby plant runs often enough that it has to be treated as a permanent condition. Enclosure at the source is the only reliable answer.
- Office parks, not street frontage
Campus style buildings with large open floors and hard finishes. Speech carries a long way and the ceiling plane has to carry the room.
- The climb from Durban
The inland leg is long and it is real. We quote it separately so the programme is built on actual dates.
- Altitude and dry air
PET felt is stable in dry conditions and does not shed fibre, which suits sealed, conditioned buildings.
- Assembly and performance rooms
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level.
04 / Room by room
Where the money goes on a Johannesburg project
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Screen to screen
Independent construction between auditoria, with services broken at the line. Standby plant runs often enough that it has to be treated as a permanent condition. Enclosure at the source is the only reliable answer.
- SoundBlanket mass loaded vinyl, 2100 kg per cubic metre
- Soundproofing materials, 1800 x 900 x 20 mm, 100 kg per cubic metre, NRC 0.85
- Acoustic panels, Cut pattern in PET felt, adds visual rhythm without changing the absorber
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In room response
Heavy absorption on side and rear walls so the mix is heard as intended. Campus style buildings with large open floors and hard finishes. Speech carries a long way and the ceiling plane has to carry the room.
- SoundBlanket mass loaded vinyl, STC 30, 5.25 kg per sq m
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Acoustic panels, ASTM C423
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Plant and projection
Equipment noise into the auditorium, treated at source. The inland leg is long and it is real. We quote it separately so the programme is built on actual dates.
- SoundBlanket mass loaded vinyl, STC 34, 8.4 kg per sq m
- Soundproofing materials, ASTM E90 for the barrier, ASTM C423 for the absorber
- Acoustic panels, 9 to 24 mm, 1220 x 2440 mm standard, up to 2440 x 4270 mm, 1200 to 3600 GSM
For a Johannesburg interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Climate
Why the climate in Johannesburg changes the material, not the target
Johannesburg 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.
On a Johannesburg job with a consultant involved, our part is material that matches the submitted data. See working with acoustic consultants.
06 / Straight talk
The six errors that cost the most
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A shared service void running across the wall line
A treated wall under a bare hard ceiling gives you a fraction of the reduction you paid for, and the room still sounds wrong.
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Treating the auditorium to fix bleed from the next screen
This is the one that comes back as a second fit-out rather than a snag.
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Doors and lobbies specified late and undersized
A 6 mm undercut under a door leaves a hole the size of a brick. The wall around it is then decorative.
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Treating it as a generic Johannesburg job
Standby plant runs often enough that it has to be treated as a permanent condition. Enclosure at the source is the only reliable answer.
05 / Getting it there
How material reaches a Johannesburg site
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Durban, then road up to Johannesburg |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Durban |
| 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 into Durban, then road up to Johannesburg. Air freight for samples and urgent quantities.
Questions from Johannesburg projects
What makes cinema and multiplex soundproofing different in Johannesburg?
Church buildings and community halls are large hard rooms carrying amplified music and speech at high level. Standby plant runs often enough that it has to be treated as a permanent condition. Enclosure at the source is the only reliable answer.
Where should the budget go first on a Johannesburg project?
Screen to screen. Independent construction between auditoria, with services broken at the line. In room response. Heavy absorption on side and rear walls so the mix is heard as intended.
Do you have an office or installation team in Johannesburg?
No. We manufacture in India and supply into Johannesburg. 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 Johannesburg site?
ships from: Palwal, Haryana, India, arrives at: Durban, then road up to Johannesburg, 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?
A shared service void running across the wall line. Treating the auditorium to fix bleed from the next screen.
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
Drawings in, BOQ and a delivered date out
Send what you have. We will give you a layer by layer build-up, a bill of quantities and a date material lands, and we will flag anything in the brief that will not achieve what you want.