For projects in Kolkata
Venue and restaurant acoustics in Kolkata
Two different jobs that get quoted as one: keeping bass inside the building for the neighbours, and making the room comfortable enough that guests can talk. Solving one does nothing for the other. Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
- Containment
- Low frequency through structure to flats above and beside. Mass, decoupling and a sealed envelope.
- Table level comfort
- Absorption at the ceiling so guests stop raising their voices at each other.
- Entrance and service
- Doors, lobbies and extract paths, which is where most of the leakage actually is.
- Quote
- From a plan and a section, within 48 hours
01 / Start here
The product, described honestly, for a Kolkata brief
Two different jobs that get quoted as one: keeping bass inside the building for the neighbours, and making the room comfortable enough that guests can talk. Solving one does nothing for the other.
Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
Work reaching us from Kolkata is mostly old buildings and conversions, offices, clubs and restaurants, schools, clinics, auditoriums.
- Tall rooms, hard plaster High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
- Timber floors between floors Footfall travels straight down through the joists. A resilient layer under the new finish does more than anything applied to the ceiling below.
- The structure is staying Conversions here keep the original fabric, so the work has to be internal, shallow and ideally reversible.
- Containment Low frequency through structure to flats above and beside. Mass, decoupling and a sealed envelope.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for venue soundproofing are on the main product page. This page covers what that means for a project in Kolkata.
Nightclub and venue soundproofing SoundBlanket mass loaded vinyl
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 Kolkata, split units, VRF outdoor banks and diesel generator sets sit close to occupied areas, often on the same terrace as a bedroom. Generator enclosure and condenser screening are the recurring jobs.
Duct and plant wrap. Membrane wrapped over the duct with a decoupling layer beneath, sealed at every lap.
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Layer 2
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 Kolkata, auditoria, community halls and pandal spaces carry amplified speech and music at high level.
Mixed finish. Plain felt where it is out of eye line, printed or grooved where it is seen.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Kolkata, long established schools and colleges in masonry with high ceilings and very large class sizes.
Zoned. Carpet in the circulation and meeting zones, hard floor elsewhere, so the treatment sits where the noise is made.
If you are specifying for a Kolkata project, we can give you a section, a BOQ and the honest limits of each layer. See how we support architects.
03 / On the ground
What the buildings in Kolkata do to the specification
- Tall rooms, hard plaster
High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
- Timber floors between floors
Footfall travels straight down through the joists. A resilient layer under the new finish does more than anything applied to the ceiling below.
- The structure is staying
Conversions here keep the original fabric, so the work has to be internal, shallow and ideally reversible.
- Humid most of the year
PET felt does not hold moisture or feed mould, which matters where mineral products sag within a couple of seasons.
- Assembly and performance rooms
Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
04 / Room by room
What each space in a Kolkata project needs
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Containment
Low frequency through structure to flats above and beside. Mass, decoupling and a sealed envelope. High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
- SoundBlanket mass loaded vinyl, 2100 kg per cubic metre
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- Acoustic carpet and rugs, High density polyester
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Table level comfort
Absorption at the ceiling so guests stop raising their voices at each other. Footfall travels straight down through the joists. A resilient layer under the new finish does more than anything applied to the ceiling below.
- SoundBlanket mass loaded vinyl, STC 30, 5.25 kg per sq m
- Wooden slat acoustic panels, 2440 x 192 mm and 2440 x 128 mm
- Acoustic carpet and rugs, Felt
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Entrance and service
Doors, lobbies and extract paths, which is where most of the leakage actually is. Conversions here keep the original fabric, so the work has to be internal, shallow and ideally reversible.
- SoundBlanket mass loaded vinyl, STC 34, 8.4 kg per sq m
- Wooden slat acoustic panels, 14, 16 and 18 mm
- Acoustic carpet and rugs, 64 sq ft per pack
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 Kolkata, before acoustics is discussed
Kolkata 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.
If a consultant has set the target, we will quote against their figures rather than ours, and stay out of the scope they own. More on working with acoustic consultants.
06 / Before you buy
The six errors that cost the most
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Panels on the wall as a neighbour noise solution
This is the one that comes back as a second fit-out rather than a snag.
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A lobby with both doors able to open at once
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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Extract ducting that bypasses every wall you built
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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Treating it as a generic Kolkata job
High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
05 / Getting it there
Supply into Kolkata, start to site
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | three days |
| Dispatch | 2 to 4 working days |
| To site | three days |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
By road from Palwal, roughly fourteen hundred kilometres, normally three days on a dedicated truck.
Questions from Kolkata projects
What makes venue and restaurant acoustics different in Kolkata?
Auditoria, community halls and pandal spaces carry amplified speech and music at high level. High ceilings and lime plaster hold sound for a long time. A room can look magnificent and still defeat anyone trying to speak in it.
Where should the budget go first on a Kolkata project?
Containment. Low frequency through structure to flats above and beside. Mass, decoupling and a sealed envelope. Table level comfort. Absorption at the ceiling so guests stop raising their voices at each other.
Do you have an office or installation team in Kolkata?
No. We manufacture in India and supply into Kolkata. 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 Kolkata site?
made at: Our own plant, Palwal, Haryana, reaches site in: three days, dispatch: 2 to 4 working days. Standard items dispatch in 2 to 4 working days from our plant at Palwal. 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 on the wall as a neighbour noise solution. A lobby with both doors able to open at once.
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
Tell us the room, we will tell you the build-up
One drawing gets you a proper answer. Build-up, quantities, a delivered date, and an honest note on anything we think is the wrong approach.