For projects in Sao Paulo
School and classroom acoustics in Sao Paulo
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 concrete and tile with high ceilings and hard floors, and covered play areas amplify everything.
- 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 Sao Paulo 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 concrete and tile with high ceilings and hard floors, and covered play areas amplify everything.
Work reaching us from Sao Paulo is mostly corporate towers, apartments, restaurants, hotels, clinics, studios, schools.
- Santos, then the climb inland The port leg and the road leg are separate costs and separate time. We quote both rather than one.
- Towers block, interiors ring Concrete frames handle airborne transfer. The complaint is nearly always that the room itself is too live.
- Traffic and helicopters Street noise and rotor noise reach upper floors through glazing rather than structure, so the facade is where the money goes.
- 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 Sao Paulo.
02 / The build-up
How the layers stack, from the structure inwards
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Layer 1
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Sao Paulo, split units and VRF, with condensers in light wells and on facades close to bedrooms.
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
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Sao Paulo, churches, event halls and auditoriums are large hard rooms carrying amplified music at high level.
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 Sao Paulo, classrooms are concrete and tile with high ceilings and hard floors, and covered play areas amplify everything.
Over a resilient underlay. Where impact noise to the floor below is the actual complaint, the underlay does that work, not the carpet.
If you are specifying for a Sao Paulo project, we can give you a section, a BOQ and the honest limits of each layer. See how we support architects.
03 / Local conditions
What we see driving Sao Paulo briefs
- Santos, then the climb inland
The port leg and the road leg are separate costs and separate time. We quote both rather than one.
- Towers block, interiors ring
Concrete frames handle airborne transfer. The complaint is nearly always that the room itself is too live.
- Traffic and helicopters
Street noise and rotor noise reach upper floors through glazing rather than structure, so the facade is where the money goes.
- Impact between apartments
Hard floors over slabs pass footfall down. The underlay has to go in before the finish, not after the complaint.
- Assembly and performance rooms
Churches, event halls and auditoriums are large hard rooms carrying amplified music at high level.
- School and campus buildings
Classrooms are concrete and tile with high ceilings and hard floors, and covered play areas amplify everything.
04 / Room by room
Where the money goes on a Sao Paulo project
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Classroom RT
A number, set against room volume, achieved mostly at the ceiling. The port leg and the road leg are separate costs and separate time. We quote both rather than one.
- PET felt acoustic panels, 100% PET non-woven, no added binder
- Ceiling baffles and clouds, 9 to 24 mm
- Acoustic panels, Cut pattern in PET felt, adds visual rhythm without changing the absorber
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Corridor spill
Long hard circulation feeds every room off it. Treating the corridor helps every classroom at once. Concrete frames handle airborne transfer. The complaint is nearly always that the room itself is too live.
- PET felt acoustic panels, 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent
- Ceiling baffles and clouds, Made to the drawing, standard and custom
- Acoustic panels, ASTM C423
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Halls and gyms
Dual use rooms carrying speech, music and sport, where durability decides the product. Street noise and rotor noise reach upper floors through glazing rather than structure, so the facade is where the money goes.
- PET felt acoustic panels, 4 to 24 mm
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
- Acoustic panels, 9 to 24 mm, 1220 x 2440 mm standard, up to 2440 x 4270 mm, 1200 to 3600 GSM
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 Sao Paulo climate rules in and rules out
Sao Paulo 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 Sao Paulo job with a consultant involved, our part is material that matches the submitted data. See working with acoustic consultants.
06 / Straight talk
What we watch go wrong on jobs like this
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Panels at child height where they get damaged
Small on the drawing, expensive on site, and almost always found after handover.
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Treating one classroom and leaving the corridor
This is the one that comes back as a second fit-out rather than a snag.
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Choosing a product that cannot take a football
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 Sao Paulo job
The port leg and the road leg are separate costs and separate time. We quote both rather than one.
05 / Route to site
Supply into Sao Paulo, start to site
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Santos, then road up to Sao Paulo |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Santos |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 4 to 7 working days. The sea leg from India is long, so plan the full door to door window into the programme. We give real dates, not optimistic ones.
Sea freight into Santos, then road up to Sao Paulo. Air freight for samples and urgent quantities.
Questions from Sao Paulo projects
What makes school and classroom acoustics different in Sao Paulo?
Classrooms are concrete and tile with high ceilings and hard floors, and covered play areas amplify everything. Concrete frames handle airborne transfer. The complaint is nearly always that the room itself is too live.
Where should the budget go first on a Sao Paulo 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 Sao Paulo?
No. We manufacture in India and supply into Sao Paulo. 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 Sao Paulo site?
ships from: Palwal, Haryana, India, arrives at: Santos, then road up to Sao Paulo, dispatch: 4 to 7 working days. Standard items dispatch in 4 to 7 working days. The sea leg from India is long, so plan the full door to door window into the programme. We give real dates, not optimistic ones.
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
Drawings in, BOQ and a delivered date out
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.