For projects in Thailand
HVAC, plant and machine noise control in Thailand
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 VRF with condensers on balconies and in light wells, running at full load most of the year.
- 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 Thailand 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 and VRF with condensers on balconies and in light wells, running at full load most of the year.
Work reaching us from Thailand is mostly industrial estates and plant, resorts and hotels, offices, hospitals, schools, studios.
- Heat and humidity all year PET felt does not absorb moisture, shed fibre or feed mould, which matters where mineral products sag in a tropical climate.
- Two different markets Industrial estate work is enclosure and mass. Resort work is guest room isolation and function room acoustics. We quote them differently because they are different problems.
- Cooling plant never stops Large continuous cooling loads next to occupied space generate more complaints than anything happening inside the room.
- 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 Thailand.
02 / The build-up
The build-up, layer by layer
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Layer 1
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Thailand, split units and VRF with condensers on balconies and in light wells, running at full load most of the year.
With a porous backing. Board over mineral backing where the room needs more than the board alone gives.
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Layer 2
Acoustic foam and BassBloc
Open cell foam shapes for high frequency control, and BassBloc, a high density absorber built for the low mid range where ordinary foam does nothing. In Thailand, temples, function halls and hotel ballrooms are tall hard volumes carrying amplified speech and music.
First reflection points. Mirror trick placement on side walls and ceiling, which is a handful of panels rather than a lined room.
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Layer 3
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Thailand, classrooms are hard and naturally ventilated, open to traffic and corridor noise, with large class sizes pushing levels up.
Vertical baffles. Hung on edge in rows. Both faces absorb, so coverage figures based on plan area understate them.
If you are specifying for a Thailand project, we can give you a section, a BOQ and the honest limits of each layer. See how we support architects.
03 / What drives the brief
The Thailand conditions that change the answer
- Heat and humidity all year
PET felt does not absorb moisture, shed fibre or feed mould, which matters where mineral products sag in a tropical climate.
- Two different markets
Industrial estate work is enclosure and mass. Resort work is guest room isolation and function room acoustics. We quote them differently because they are different problems.
- Cooling plant never stops
Large continuous cooling loads next to occupied space generate more complaints than anything happening inside the room.
- Resort programmes have fixed dates
Openings do not move. We give honest dispatch and transit windows rather than optimistic ones.
- Plant and HVAC
Split units and VRF with condensers on balconies and in light wells, running at full load most of the year.
04 / Room by room
Where the money goes on a Thailand project
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At source
Enclosure, barrier or anti vibration mounts at the machine. PET felt does not absorb moisture, shed fibre or feed mould, which matters where mineral products sag in a tropical climate.
- 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
- Acoustic foam and BassBloc, 100 kg per cubic metre
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In the path
Duct lining, attenuators and lagging on the first run out of the plant. Industrial estate work is enclosure and mass. Resort work is guest room isolation and function room acoustics. We quote them differently because they are different problems.
- SoundBlanket mass loaded vinyl, STC 30, 5.25 kg per sq m
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Acoustic foam and BassBloc, 100 to 500 Hz
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At the receiver
Only after the first two, and only for what is left. Large continuous cooling loads next to occupied space generate more complaints than anything happening inside the room.
- SoundBlanket mass loaded vinyl, STC 34, 8.4 kg per sq m
- Soundproofing materials, ASTM E90 for the barrier, ASTM C423 for the absorber
- Acoustic foam and BassBloc, 0.85
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
What the Thailand climate rules in and rules out
Thailand 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 Thailand project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
06 / Read this first
Where this kind of project usually fails
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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 Thailand job
PET felt does not absorb moisture, shed fibre or feed mould, which matters where mineral products sag in a tropical climate.
05 / Logistics
How material reaches a Thailand site
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Laem Chabang, then road to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Laem Chabang |
| 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 Laem Chabang, then road to site. Air freight for samples and urgent quantities.
Questions from Thailand projects
What makes HVAC, plant and machine noise control different in Thailand?
Split units and VRF with condensers on balconies and in light wells, running at full load most of the year. Industrial estate work is enclosure and mass. Resort work is guest room isolation and function room acoustics. We quote them differently because they are different problems.
Where should the budget go first on a Thailand 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 Thailand?
No. We manufacture in India and supply into Thailand. 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 Thailand site?
ships from: Palwal, Haryana, India, arrives at: Laem Chabang, 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
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.