For projects in Siliguri
Auditorium acoustics and soundproofing in Siliguri
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem. Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
- Reverberation time
- Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
- Early reflections
- Shaped surfaces that send energy to the rear seats rather than absorbing everything.
- Rear wall
- The single worst surface in most halls, and the first one to treat.
- Quote
- From a plan and a section, within 48 hours
01 / The product
What this material is and where it earns its place in Siliguri
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem.
Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
Work reaching us from Siliguri is mostly hotels and resorts, restaurants, hospitals, schools, offices, banquet halls.
- Humidity decides the material PET felt does not absorb moisture, shed fibre or feed mould. In a damp climate that is the difference between a finish that lasts and one that sags in two seasons.
- A distribution point, not just a destination Material often moves onward to the hills and the Northeast. We pack for a second leg on rougher roads when you tell us that is happening.
- Hotel guest rooms Corridor noise and the next room generate the complaints. Door and wall detailing does that work, not the panel in the room.
- Reverberation time Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for auditorium acoustics are on the main product page. This page covers what that means for a project in Siliguri.
02 / The build-up
What goes where, from the structure in
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Layer 1
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Siliguri, 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.
On a cavity. Mounted on battens with an air gap, which is where the low mid performance comes from.
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Layer 2
Wooden slat acoustic panels
Timber slats on an acoustic backing. In Siliguri, auditoria, community halls and pandal spaces carry amplified speech and music at high level.
Feature wall only. Slats where they are seen, plain felt elsewhere, to hold the budget where it shows.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Siliguri, long established schools and colleges in masonry with high ceilings and very large class sizes.
Over a resilient underlay. Where impact noise to the floor below is the actual complaint, the underlay does that work, not the carpet.
For a Siliguri 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 decides the build-up in Siliguri
- Humidity decides the material
PET felt does not absorb moisture, shed fibre or feed mould. In a damp climate that is the difference between a finish that lasts and one that sags in two seasons.
- A distribution point, not just a destination
Material often moves onward to the hills and the Northeast. We pack for a second leg on rougher roads when you tell us that is happening.
- Hotel guest rooms
Corridor noise and the next room generate the complaints. Door and wall detailing does that work, not the panel in the room.
- Three to four days by road
A dedicated truck from Palwal, with the schedule confirmed before dispatch rather than estimated after.
- Assembly and performance rooms
Auditoria, community halls and pandal spaces carry amplified speech and music at high level.
- School and campus buildings
Long established schools and colleges in masonry with high ceilings and very large class sizes.
04 / Room by room
Space by space, for Siliguri briefs
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Reverberation time
Set against use. Speech and music want different numbers, and a dual use hall needs a decision. PET felt does not absorb moisture, shed fibre or feed mould. In a damp climate that is the difference between a finish that lasts and one that sags in two seasons.
- Wood wool acoustic panels, 1200 x 600 mm
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- PET felt acoustic panels, 4 to 24 mm
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Early reflections
Shaped surfaces that send energy to the rear seats rather than absorbing everything. Material often moves onward to the hills and the Northeast. We pack for a second leg on rougher roads when you tell us that is happening.
- Wood wool acoustic panels, 20 mm
- Wooden slat acoustic panels, 2440 x 192 mm and 2440 x 128 mm
- PET felt acoustic panels, 1220 x 2440 mm standard, 4 x 8 ft
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Rear wall
The single worst surface in most halls, and the first one to treat. Corridor noise and the next room generate the complaints. Door and wall detailing does that work, not the panel in the room.
- Wood wool acoustic panels, 400 kg per cubic metre
- Wooden slat acoustic panels, 14, 16 and 18 mm
- PET felt acoustic panels, 2440 x 4270 mm, 2.44 x 4.27 m, 8 x 14 ft
For a Siliguri 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 Siliguri climate decides the material list
Siliguri 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 Siliguri 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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Absorbing the whole room and losing the back rows
Small on the drawing, expensive on site, and almost always found after handover.
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Adding speakers to fix a reverberation problem
This is the one that comes back as a second fit-out rather than a snag.
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Ignoring the rear wall because it is behind the audience
Small on the drawing, expensive on site, and almost always found after handover.
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Treating it as a generic Siliguri job
PET felt does not absorb moisture, shed fibre or feed mould. In a damp climate that is the difference between a finish that lasts and one that sags in two seasons.
05 / Route to site
Getting it to Siliguri, with real dates
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | three to four days |
| Dispatch | 2 to 4 working days |
| To site | three to four 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 fifteen hundred kilometres, normally three to four days on a dedicated truck.
Questions from Siliguri projects
What makes auditorium acoustics and soundproofing different in Siliguri?
Auditoria, community halls and pandal spaces carry amplified speech and music at high level. PET felt does not absorb moisture, shed fibre or feed mould. In a damp climate that is the difference between a finish that lasts and one that sags in two seasons.
Where should the budget go first on a Siliguri project?
Reverberation time. Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Early reflections. Shaped surfaces that send energy to the rear seats rather than absorbing everything.
Do you have an office or installation team in Siliguri?
No. We manufacture in India and supply into Siliguri. 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 Siliguri site?
made at: Our own plant, Palwal, Haryana, reaches site in: three to four 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?
Absorbing the whole room and losing the back rows. Adding speakers to fix a reverberation problem.
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
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.