For projects in Nigeria
HVAC, plant and machine noise control in Nigeria
Noise with a source. Almost every honest fix is at the machine, the duct or the plant room, and almost nothing useful happens by lining the far wall of the occupied space. Split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC.
- At source
- Enclosure, barrier or anti vibration mounts at the machine.
- In the path
- Duct lining, attenuators and lagging on the first run out of the plant.
- At the receiver
- Only after the first two, and only for what is left.
- Quote
- From a plan and a section, within 48 hours
01 / What it is
The material, and what it actually does on a Nigeria job
Noise with a source. Almost every honest fix is at the machine, the duct or the plant room, and almost nothing useful happens by lining the far wall of the occupied space.
Split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC.
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.
- At source Enclosure, barrier or anti vibration mounts at the machine.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for HVAC and plant noise control are on the main product page. This page covers what that means for a project in Nigeria.
02 / The build-up
How the layers stack, from the structure inwards
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Layer 1
SoundBlanket mass loaded vinyl
A limp, high density sheet that adds mass to a partition, floor or duct without adding depth. In Nigeria, split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC.
Duct and plant wrap. Membrane wrapped over the duct with a decoupling layer beneath, sealed at every lap.
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Layer 2
Soundproofing materials
The blocking side of the range taken together: mass loaded vinyl, resilient layers, cavity absorption and the build-ups they belong in. In Nigeria, church buildings and event halls are large hard rooms carrying amplified music at very high level.
Resilient bar. Where a full independent leaf will not fit. Effective, and very easy to short circuit with one wrong screw.
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Layer 3
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Nigeria, classrooms are hard with large class sizes, and school halls carry assembly and performance in one volume.
Horizontal clouds. Flat rafts over the occupied zone, which also reflect early speech energy back down where it helps.
If you are specifying for a Nigeria project, we can give you a section, a BOQ and the honest limits of each layer. See how we support architects.
03 / In this market
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.
- Plant and HVAC
Split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC.
04 / Room by room
Room by room, on a typical Nigeria job
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At source
Enclosure, barrier or anti vibration mounts at the machine. Standby generation runs constantly in many buildings and sits close to occupied space. Enclosure and mass, not absorption, is the 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
- Ceiling baffles and clouds, Made to the drawing, standard and custom
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In the path
Duct lining, attenuators and lagging on the first run out of the plant. Congregations in the thousands in hard concrete volumes. Intelligibility fails long before anyone describes the room as echoey.
- SoundBlanket mass loaded vinyl, STC 30, 5.25 kg per sq m
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
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At the receiver
Only after the first two, and only for what is left. 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.
- SoundBlanket mass loaded vinyl, STC 34, 8.4 kg per sq m
- Soundproofing materials, ASTM E90 for the barrier, ASTM C423 for the absorber
- Ceiling baffles and clouds, ASTM C423
Interior designers tend to arrive with the look already decided. We will tell you which finish gets there without losing the acoustics. See how we work with interior designers.
04 / Climate
Durability in Nigeria, before acoustics is discussed
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.
On a Nigeria job with a consultant involved, our part is material that matches the submitted data. See working with acoustic consultants.
06 / Worth knowing
What we watch go wrong on jobs like this
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Absorption on the office wall for a plant room problem
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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Lagging a duct that is carrying the noise as breakout from the fan
Enclose the machine, break the vibration path, then deal with what is left. Doing it in the other order costs more and achieves less.
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Ignoring structure borne vibration through the mounts
It sounds like a small detail until the room is finished and the complaint arrives.
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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 / Route to site
Getting it to Nigeria, with real dates
| 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 HVAC, plant and machine noise control different in Nigeria?
Split units and diesel generator sets, with generation running often enough that enclosure matters more than the HVAC. 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?
At source. Enclosure, barrier or anti vibration mounts at the machine. In the path. Duct lining, attenuators and lagging on the first run out of the plant.
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?
Absorption on the office wall for a plant room problem. Lagging a duct that is carrying the noise as breakout from the fan.
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
We quote from drawings, not from a square foot rate. Send a plan and the section through the critical wall or ceiling and you will get something you can actually build from.