For projects in Sao Paulo
Home theatre soundproofing and acoustics in Sao Paulo
Serious equipment in a room with no isolation plan. The complaint is almost never the speakers. It is bass leaving the room and an untreated box making the system sound worse than it is. Concrete frame with block infill and hard floors. Apartment towers share slabs and walls, and impact noise between floors is the common complaint.
- Containment
- Bass through the wall, floor and door. Mass and decoupling, with the door usually the weakest point.
- Low frequency inside
- Corner absorption with depth, before any surface treatment.
- Reflections
- Side wall and ceiling first reflection points at the seating position.
- Quote
- From a plan and a section, within 48 hours
01 / The material
What this is, and what it changes in a Sao Paulo room
Serious equipment in a room with no isolation plan. The complaint is almost never the speakers. It is bass leaving the room and an untreated box making the system sound worse than it is.
Concrete frame with block infill and hard floors. Apartment towers share slabs and walls, and impact noise between floors is the common complaint.
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.
- Containment Bass through the wall, floor and door. Mass and decoupling, with the door usually the weakest point.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for home theatre soundproofing 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
SoundBlanket mass loaded vinyl
A limp, high density sheet that adds mass to a partition, floor or duct without adding depth. In Sao Paulo, split units and VRF, with condensers in light wells and on facades close to bedrooms.
Floor, floating. Membrane under a resilient layer and a floating deck, so impact energy is broken before it reaches the slab.
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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 Sao Paulo, churches, event halls and auditoriums are large hard rooms carrying amplified music at high level.
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
Soundproof curtains
A layered curtain with a mass loaded vinyl core, used where an opening has to stay an opening. In Sao Paulo, classrooms are concrete and tile with high ceilings and hard floors, and covered play areas amplify everything.
Double layer at a doorway. Two curtains with an air gap where a single layer will not reach the target.
We would rather argue about the build-up at design stage than on site. See how we support architects.
03 / On the ground
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.
- The housing stock
Concrete frame with block infill and hard floors. Apartment towers share slabs and walls, and impact noise between floors is the common complaint.
04 / Room by room
Space by space, for Sao Paulo briefs
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Containment
Bass through the wall, floor and door. Mass and decoupling, with the door usually the weakest point. The port leg and the road leg are separate costs and separate time. We quote both rather than one.
- Acoustic foam and BassBloc, 1800 x 900 mm
- Soundproofing materials, 1800 x 900 x 20 mm, 100 kg per cubic metre, NRC 0.85
- Soundproof curtains, 5.5 kg per sq m
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Low frequency inside
Corner absorption with depth, before any surface treatment. Concrete frames handle airborne transfer. The complaint is nearly always that the room itself is too live.
- Acoustic foam and BassBloc, 20 mm
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Soundproof curtains, Up to 30 dB
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Reflections
Side wall and ceiling first reflection points at the seating position. Street noise and rotor noise reach upper floors through glazing rather than structure, so the facade is where the money goes.
- Acoustic foam and BassBloc, 100 kg per cubic metre
- Soundproofing materials, ASTM E90 for the barrier, ASTM C423 for the absorber
- Soundproof curtains, 30
For a Sao Paulo interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Climate and durability
Why the climate in Sao Paulo changes the material, not the target
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.
Consultants get the raw data, not a sales sheet. That is the whole of our side of the job, and it is set out under working with acoustic consultants.
06 / Worth knowing
What we watch go wrong on jobs like this
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Foam on the walls as a soundproofing measure
It sounds like a small detail until the room is finished and the complaint arrives.
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A standard door on a room built to hold bass
Soundproofing fails at the gaps, not the materials. One unsealed service penetration can undo a correctly built wall.
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Treating before the room is sealed
A 6 mm undercut under a door leaves a hole the size of a brick. The wall around it is then decorative.
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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
Getting it to Sao Paulo, with real dates
| 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 home theatre soundproofing and acoustics different in Sao Paulo?
Concrete frame with block infill and hard floors. Apartment towers share slabs and walls, and impact noise between floors is the common complaint. 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?
Containment. Bass through the wall, floor and door. Mass and decoupling, with the door usually the weakest point. Low frequency inside. Corner absorption with depth, before any surface treatment.
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?
Foam on the walls as a soundproofing measure. A standard door on a room built to hold bass.
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.