For projects in Montreal
HVAC, plant and machine noise control in Montreal
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. Forced air heating runs most of the year, so duct-borne noise and return air paths carry sound between rooms as reliably as the walls do.
- 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 material, and what it actually does on a Montreal job
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.
Forced air heating runs most of the year, so duct-borne noise and return air paths carry sound between rooms as reliably as the walls do.
Work reaching us from Montreal is mostly plex and condo housing, studios and rehearsal rooms, offices, restaurants, schools, clinics.
- Plex floors pass everything Stacked flats with timber joists send footfall and speech straight down. A resilient layer under the new floor does more than any ceiling treatment below it.
- A city that makes a lot of noise on purpose Rehearsal rooms, studios and practice spaces in residential buildings are normal here. Isolation is what keeps them viable, not absorption.
- The port is in the city Containers come up the St Lawrence and land in Montreal itself, which keeps the road leg short and the landed cost predictable.
- 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 Montreal.
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 Montreal, forced air heating runs most of the year, so duct-borne noise and return air paths carry sound between rooms as reliably as the walls do.
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 Montreal, community centres, school gymnasiums and church halls carry speech, music and sport in the same hard volume.
Direct fix. Mechanically fixed to the soffit or wall. Durable and simple.
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Layer 3
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 Montreal, school buildings run hard floors and lay-in tile with long heating seasons and sealed envelopes, so rooms stay live and mechanical noise is always present.
First reflection points. Mirror trick placement on side walls and ceiling, which is a handful of panels rather than a lined room.
For a Montreal practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
03 / On the ground
What the buildings in Montreal do to the specification
- Plex floors pass everything
Stacked flats with timber joists send footfall and speech straight down. A resilient layer under the new floor does more than any ceiling treatment below it.
- A city that makes a lot of noise on purpose
Rehearsal rooms, studios and practice spaces in residential buildings are normal here. Isolation is what keeps them viable, not absorption.
- The port is in the city
Containers come up the St Lawrence and land in Montreal itself, which keeps the road leg short and the landed cost predictable.
- Long sealed winters
Buildings close up for months and mechanical systems run hard. Noise stops escaping and accumulates inside instead.
- Plant and HVAC
Forced air heating runs most of the year, so duct-borne noise and return air paths carry sound between rooms as reliably as the walls do.
04 / Room by room
Space by space, for Montreal briefs
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At source
Enclosure, barrier or anti vibration mounts at the machine. Stacked flats with timber joists send footfall and speech straight down. A resilient layer under the new floor does more than any ceiling treatment below it.
- Wood wool acoustic panels, 1200 x 600 mm
- 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. Rehearsal rooms, studios and practice spaces in residential buildings are normal here. Isolation is what keeps them viable, not absorption.
- Wood wool acoustic panels, 20 mm
- 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. Containers come up the St Lawrence and land in Montreal itself, which keeps the road leg short and the landed cost predictable.
- Wood wool acoustic panels, 400 kg per cubic metre
- Acoustic foam and BassBloc, 100 to 500 Hz
- Ceiling baffles and clouds, ASTM C423
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 / Climate and durability
Durability in Montreal, before acoustics is discussed
Montreal is cool and damp, with long heating seasons and cold external walls, and that narrows the material list before acoustics is discussed.
Cold wall build-ups and long heating seasons mean interstitial condensation is a real risk behind any lining. PET felt is unaffected by damp air and will not feed mould where a fabric-faced mineral product would.
The failure we design against here is condensation behind linings in older, poorly insulated stock.
Where a consultant is already engaged on a Montreal project, we supply to their specification and send the test reports rather than describing them. 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
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
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
Small on the drawing, expensive on site, and almost always found after handover.
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Treating it as a generic Montreal job
Stacked flats with timber joists send footfall and speech straight down. A resilient layer under the new floor does more than any ceiling treatment below it.
05 / Supply
What the route into Montreal actually looks like
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Port of Montreal, then a short road run to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea into Port of Montreal |
| 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 the Port of Montreal, then a short road run to site. Air freight for samples and urgent quantities.
Questions from Montreal projects
What makes HVAC, plant and machine noise control different in Montreal?
Forced air heating runs most of the year, so duct-borne noise and return air paths carry sound between rooms as reliably as the walls do. Stacked flats with timber joists send footfall and speech straight down. A resilient layer under the new floor does more than any ceiling treatment below it.
Where should the budget go first on a Montreal 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 Montreal?
No. We manufacture in India and supply into Montreal. 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 Montreal site?
ships from: Palwal, Haryana, India, arrives at: Port of Montreal, then a short road run to site, 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?
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
Send the drawings, get a straight answer
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.