For projects in Dibrugarh
HVAC, plant and machine noise control in Dibrugarh
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, 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.
- 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 product, described honestly, for a Dibrugarh brief
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, 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.
Work reaching us from Dibrugarh is mostly tea processing units, energy sector offices, hospitals, colleges, hotels, assembly halls.
- Processing machinery Driers, sorters and fans running continuously in humid buildings. Enclosure at the source is the reliable answer.
- Very high humidity PET felt does not absorb moisture, shed fibre or feed mould, which matters in a climate where mineral products fail quickly.
- A long supply route Five days by road, confirmed before dispatch, and packed for the journey rather than for a short transfer.
- 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 Dibrugarh.
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 Dibrugarh, 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
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Dibrugarh, auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey.
On a cavity. Mounted on battens with an air gap, which is where the low mid performance comes from.
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Layer 3
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Dibrugarh, schools and colleges are naturally ventilated with open corridors and large class sizes.
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 Dibrugarh 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 Dibrugarh
- Processing machinery
Driers, sorters and fans running continuously in humid buildings. Enclosure at the source is the reliable answer.
- Very high humidity
PET felt does not absorb moisture, shed fibre or feed mould, which matters in a climate where mineral products fail quickly.
- A long supply route
Five days by road, confirmed before dispatch, and packed for the journey rather than for a short transfer.
- Seismic and flood prone
Buildings are designed to move and often raised. A build-up must respect both rather than fight them.
- Plant and HVAC
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.
04 / Room by room
Where the money goes on a Dibrugarh project
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At source
Enclosure, barrier or anti vibration mounts at the machine. Driers, sorters and fans running continuously in humid buildings. Enclosure at the source is the reliable answer.
- Soundproofing materials, 2100 kg per cubic metre. 2.5 mm STC 30 at 5.25 kg per sq m, 4 mm STC 34 at 8.4, 6 mm at 12.6
- Acoustic foam and BassBloc, 20 mm
- 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. PET felt does not absorb moisture, shed fibre or feed mould, which matters in a climate where mineral products fail quickly.
- Soundproofing materials, 1800 x 900 x 20 mm, 100 kg per cubic metre, NRC 0.85
- Acoustic foam and BassBloc, 100 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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At the receiver
Only after the first two, and only for what is left. Five days by road, confirmed before dispatch, and packed for the journey rather than for a short transfer.
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Acoustic foam and BassBloc, 100 to 500 Hz
- 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 and durability
What the Dibrugarh climate rules in and rules out
Dibrugarh 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
What we watch go wrong on jobs like this
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Absorption on the office wall for a plant room problem
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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Lagging a duct that is carrying the noise as breakout from the fan
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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Ignoring structure borne vibration through the mounts
This is the one that comes back as a second fit-out rather than a snag.
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Treating it as a generic Dibrugarh job
Driers, sorters and fans running continuously in humid buildings. Enclosure at the source is the reliable answer.
05 / Route to site
How material reaches a Dibrugarh site
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | five days |
| Dispatch | 2 to 4 working days |
| To site | five 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 twenty two hundred kilometres, normally five days on a dedicated truck.
Questions from Dibrugarh projects
What makes HVAC, plant and machine noise control different in Dibrugarh?
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. Driers, sorters and fans running continuously in humid buildings. Enclosure at the source is the reliable answer.
Where should the budget go first on a Dibrugarh 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 Dibrugarh?
No. We manufacture in India and supply into Dibrugarh. 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 Dibrugarh site?
made at: Our own plant, Palwal, Haryana, reaches site in: five 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?
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
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.