For projects in France
HVAC, plant and machine noise control in France
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. Mechanical extract ventilation is near universal, and the extract path carries sound between flats as reliably as the wall.
- 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 / The material
What this material is and where it earns its place in France
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.
Mechanical extract ventilation is near universal, and the extract path carries sound between flats as reliably as the wall.
Work reaching us from France is mostly apartments, hotels, restaurants, offices, studios, schools, clinics.
- Retrofit, not new build Most rooms already exist, so the build-up has to work within the depth and the finishes you already have.
- Timber floors and divided apartments Footfall and speech move between homes through the floor. Mass plus a resilient layer beats any surface treatment underneath.
- Hospitality volume Restaurants and hotels take the acoustic complaints personally, because guests write them down. Absorption goes where it will not fight the design.
- 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 France.
02 / The build-up
What goes where, from the structure in
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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 France, mechanical extract ventilation is near universal, and the extract path carries sound between flats as reliably as the wall.
Wall, decoupled. Independent stud, membrane between the boards, cavity absorption, two boards. The membrane is one part of a system, never the whole answer.
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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 France, churches, salles des fetes and civic auditoriums are stone and plaster volumes with very long decay.
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 France, school buildings are hard surfaced with high ceilings, and canteens are consistently the loudest rooms.
Vertical baffles. Hung on edge in rows. Both faces absorb, so coverage figures based on plan area understate them.
For a France practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
03 / On the ground
What we see driving France briefs
- Retrofit, not new build
Most rooms already exist, so the build-up has to work within the depth and the finishes you already have.
- Timber floors and divided apartments
Footfall and speech move between homes through the floor. Mass plus a resilient layer beats any surface treatment underneath.
- Hospitality volume
Restaurants and hotels take the acoustic complaints personally, because guests write them down. Absorption goes where it will not fight the design.
- Seasonal programmes
Coastal and resort work runs to a fixed opening date. We give honest dispatch and transit dates so the fit-out is not waiting on a container.
- Plant and HVAC
Mechanical extract ventilation is near universal, and the extract path carries sound between flats as reliably as the wall.
04 / Room by room
Room by room, on a typical France job
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At source
Enclosure, barrier or anti vibration mounts at the machine. Most rooms already exist, so the build-up has to work within the depth and the finishes you already have.
- 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. Footfall and speech move between homes through the floor. Mass plus a resilient layer beats any surface treatment underneath.
- 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. Restaurants and hotels take the acoustic complaints personally, because guests write them down. Absorption goes where it will not fight the design.
- 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 / Conditions
Durability in France, before acoustics is discussed
France is cool and damp, with long heating seasons and cold external walls, and that narrows the material list before acoustics is discussed.
Cold wall build-ups and long heating seasons mean interstitial condensation is a real risk behind any lining. PET felt is unaffected by damp air and will not feed mould where a fabric-faced mineral product would.
The failure we design against here is condensation behind linings in older, poorly insulated stock.
Consultants get the raw data, not a sales sheet. That is the whole of our side of the job, and it is set out under working with acoustic consultants.
06 / Straight talk
What we watch go wrong on jobs like this
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Absorption on the office wall for a plant room problem
Plant noise treated as a room problem is the most reliable way to spend a budget and change nothing anyone can hear.
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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
Small on the drawing, expensive on site, and almost always found after handover.
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Treating it as a generic France job
Most rooms already exist, so the build-up has to work within the depth and the finishes you already have.
05 / Logistics
Supply into France, start to site
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Le Havre, Marseille or Antwerp, then road to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Le Havre |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 4 to 7 working days. Grooved and custom colours take longer, and we say so before you order.
Sea freight into Le Havre, Marseille or Antwerp, then road to site. Air freight for samples and urgent quantities.
Questions from France projects
What makes HVAC, plant and machine noise control different in France?
Mechanical extract ventilation is near universal, and the extract path carries sound between flats as reliably as the wall. Most rooms already exist, so the build-up has to work within the depth and the finishes you already have.
Where should the budget go first on a France 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 France?
No. We manufacture in India and supply into France. 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 France site?
ships from: Palwal, Haryana, India, arrives at: Le Havre, Marseille or Antwerp, then road to site, dispatch: 4 to 7 working days. Standard items dispatch in 4 to 7 working days. Grooved and custom colours take longer, and we say so before you order.
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
Send the drawings, get a straight answer
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.