For projects in Bali
School and classroom acoustics in Bali
Hard floors, bare walls and long corridors that amplify everything. Children with developing language, and anyone with a hearing difficulty, lose more from a live classroom than adults do, which is why intelligibility is the target rather than quiet. Classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
- Classroom RT
- A number, set against room volume, achieved mostly at the ceiling.
- Corridor spill
- Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once.
- Halls and gyms
- Dual use rooms carrying speech, music and sport, where durability decides the product.
- Quote
- From a plan and a section, within 48 hours
01 / What it is
The product, described honestly, for a Bali brief
Hard floors, bare walls and long corridors that amplify everything. Children with developing language, and anyone with a hearing difficulty, lose more from a live classroom than adults do, which is why intelligibility is the target rather than quiet.
Classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
Work reaching us from Bali is mostly resorts and villas, beach clubs and restaurants, spas, offices, guest rooms.
- Buildings that are only partly enclosed Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- Beach clubs and neighbours Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- Humidity and salt destroy the wrong material PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- Classroom RT A number, set against room volume, achieved mostly at the ceiling.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for school acoustics are on the main product page. This page covers what that means for a project in Bali.
02 / The build-up
What goes where, from the structure in
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Layer 1
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Bali, split units everywhere, with condensers on balconies and light wells that channel noise straight back into bedrooms.
Over a porous backing. Panel over mineral or PET backing where the room needs genuine low mid control.
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Layer 2
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Bali, places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music.
Horizontal clouds. Flat rafts over the occupied zone, which also reflect early speech energy back down where it helps.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Bali, classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
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 Bali practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
03 / In this market
What decides the build-up in Bali
- Buildings that are only partly enclosed
Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- Beach clubs and neighbours
Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- Humidity and salt destroy the wrong material
PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- An onward leg to the island
Material arrives and then continues by road or ferry. Tell us and we pack for the second journey.
- Assembly and performance rooms
Places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music.
- School and campus buildings
Classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
04 / Room by room
Where the money goes on a Bali project
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Classroom RT
A number, set against room volume, achieved mostly at the ceiling. Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- PET felt acoustic panels, 100% PET non-woven, no added binder
- Acoustic panels, 1800 x 900 mm, image printed into the felt rather than onto a facing
- Acoustic carpet and rugs, High density polyester
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Corridor spill
Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once. Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- PET felt acoustic panels, 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent
- Acoustic panels, Cut pattern in PET felt, adds visual rhythm without changing the absorber
- Acoustic carpet and rugs, Felt
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Halls and gyms
Dual use rooms carrying speech, music and sport, where durability decides the product. PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- PET felt acoustic panels, 4 to 24 mm
- Acoustic panels, ASTM C423
- Acoustic carpet and rugs, 64 sq ft per pack
If the visual is fixed and the room still has to perform, that is a solvable problem and a conversation worth having early. See how we work with interior designers.
04 / Durability
What the Bali climate rules in and rules out
Bali 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.
On a Bali job with a consultant involved, our part is material that matches the submitted data. See working with acoustic consultants.
06 / Worth knowing
Where this kind of project usually fails
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Panels at child height where they get damaged
It sounds like a small detail until the room is finished and the complaint arrives.
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Treating one classroom and leaving the corridor
Small on the drawing, expensive on site, and almost always found after handover.
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Choosing a product that cannot take a football
Noise with a source is fixed at the source. Treating the receiving room is the expensive way to get a small result.
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Treating it as a generic Bali job
Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
05 / Supply
Getting it to Bali, with real dates
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Surabaya or Benoa, then road to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Surabaya or Benoa |
| 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 Surabaya or Benoa, then road or ferry onward to site. Air freight for samples.
Questions from Bali projects
What makes school and classroom acoustics different in Bali?
Classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility. Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
Where should the budget go first on a Bali project?
Classroom RT. A number, set against room volume, achieved mostly at the ceiling. Corridor spill. Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once.
Do you have an office or installation team in Bali?
No. We manufacture in India and supply into Bali. 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 Bali site?
ships from: Palwal, Haryana, India, arrives at: Surabaya or Benoa, 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?
Panels at child height where they get damaged. Treating one classroom and leaving the corridor.
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 a plan and a section, get a real build-up
Send what you have. We will give you a layer by layer build-up, a bill of quantities and a date material lands, and we will flag anything in the brief that will not achieve what you want.