For projects in Nigeria
School and classroom acoustics in Nigeria
Hard floors, bare walls and long corridors that amplify everything. Children with developing language, and anyone with a hearing difficulty, lose more from a live classroom than adults do, which is why intelligibility is the target rather than quiet. Classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume.
- Classroom RT
- A number, set against room volume, achieved mostly at the ceiling.
- Corridor spill
- Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once.
- Halls and gyms
- Dual use rooms carrying speech, music and sport, where durability decides the product.
- Quote
- From a plan and a section, within 48 hours
01 / The material
What you are buying, and what it fixes in Nigeria
Hard floors, bare walls and long corridors that amplify everything. Children with developing language, and anyone with a hearing difficulty, lose more from a live classroom than adults do, which is why intelligibility is the target rather than quiet.
Classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume.
Work reaching us from Nigeria is mostly places of assembly, offices, hotels, generator and plant enclosures, schools, hospitals.
- Generators are a permanent condition Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the answer.
- Very large assembly halls Congregations in the thousands in hard concrete volumes. Intelligibility fails long before anyone describes the room as echoey.
- Port congestion is real Lagos can be slow to clear. We quote a realistic window rather than a best case, and we will say if another port suits you better.
- Classroom RT A number, set against room volume, achieved mostly at the ceiling.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for school acoustics are on the main product page. This page covers what that means for a project in Nigeria.
02 / The build-up
The stack, in the order it is installed
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Layer 1
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Nigeria, split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC.
Over a porous backing. Panel over mineral or PET backing where the room needs genuine low mid control.
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Layer 2
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Nigeria, church buildings and event halls are large hard rooms carrying amplified music at very high level.
Mixed with services. Set out around ducts, trays and lighting rather than fighting them, coordinated from your reflected ceiling plan.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Nigeria, classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume.
Over a resilient underlay. Where impact noise to the floor below is the actual complaint, the underlay does that work, not the carpet.
We would rather argue about the build-up at design stage than on site. See how we support architects.
03 / On the ground
What decides the build-up in Nigeria
- Generators are a permanent condition
Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the answer.
- Very large assembly halls
Congregations in the thousands in hard concrete volumes. Intelligibility fails long before anyone describes the room as echoey.
- Port congestion is real
Lagos can be slow to clear. We quote a realistic window rather than a best case, and we will say if another port suits you better.
- Humid and hot
PET felt does not hold moisture or feed mould, which matters where mineral products sag within a couple of seasons.
- Assembly and performance rooms
Church buildings and event halls are large hard rooms carrying amplified music at very high level.
- School and campus buildings
Classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume.
04 / Room by room
What each space in a Nigeria project needs
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Classroom RT
A number, set against room volume, achieved mostly at the ceiling. Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the answer.
- PET felt acoustic panels, 100% PET non-woven, no added binder
- Wood wool acoustic panels, 20 mm
- Ceiling baffles and clouds, Made to the drawing, standard and custom
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Corridor spill
Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once. Congregations in the thousands in hard concrete volumes. Intelligibility fails long before anyone describes the room as echoey.
- PET felt acoustic panels, 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent
- Wood wool acoustic panels, 400 kg per cubic metre
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
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Halls and gyms
Dual use rooms carrying speech, music and sport, where durability decides the product. Lagos can be slow to clear. We quote a realistic window rather than a best case, and we will say if another port suits you better.
- PET felt acoustic panels, 4 to 24 mm
- Wood wool acoustic panels, 0.30
- Ceiling baffles and clouds, ASTM C423
For a Nigeria interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Climate
The Nigeria climate decides the material list
Nigeria is warm and humid through most of the year, with a long wet season, and that narrows the material list before acoustics is discussed.
Humidity is the deciding factor. PET felt does not absorb moisture, shed fibre or feed mould, which is why it outlasts fabric-wrapped mineral wool in this climate. Wood wool and timber need a ventilated cavity behind them.
The failure we design against here is mould, sagging fabric finishes and swelling in timber.
Where a consultant is already engaged on a Nigeria project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
06 / Before you buy
Where this kind of project usually fails
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Panels at child height where they get damaged
This is the one that comes back as a second fit-out rather than a snag.
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Treating one classroom and leaving the corridor
This is the one that comes back as a second fit-out rather than a snag.
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Choosing a product that cannot take a football
Noise with a source is fixed at the source. Treating the receiving room is the expensive way to get a small result.
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Treating it as a generic Nigeria job
Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the answer.
05 / Logistics
Supply into Nigeria, start to site
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Lagos or Onne, then road to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Lagos or Onne |
| 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 Lagos or Onne, then road to site. Air freight for samples and urgent quantities.
Questions from Nigeria projects
What makes school and classroom acoustics different in Nigeria?
Classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume. Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the answer.
Where should the budget go first on a Nigeria project?
Classroom RT. A number, set against room volume, achieved mostly at the ceiling. Corridor spill. Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once.
Do you have an office or installation team in Nigeria?
No. We manufacture in India and supply into Nigeria. 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 Nigeria site?
ships from: Palwal, Haryana, India, arrives at: Lagos or Onne, then road 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?
Panels at child height where they get damaged. Treating one classroom and leaving the corridor.
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.