Do we need to know the source noise?

Yes. A 2-minute noise survey at the site lets us quote the exact glazing mass that hits the required indoor level.

Is 45 dB the maximum?

The AC-90 platform is certified at Rw 45 dB with the 47 dB unit; heavier laminated schedules above that are configured per project.

Does acoustic glazing look different?

Only in the edge view — the asymmetric unit is thicker. From the room and from the street it reads as a normal window.

Can it be a tilt-turn or must it be fixed?

Either — the AC-90 runs tilt-turn, casement and fixed on the same dual-cavity frame; the opening action does not change the certified figure.

AC-90 Acoustic Windows

Certified Rw 45 dB · asymmetric glazing · sealed cavities

Acoustic glazing wall of a modern residence overlooking a lake and hills

AC-90

For streets, airports and highway frontages that refuse to stay quiet at night.

Certified Rw 45 dB · asymmetric glazing · sealed cavities

Configurations

Glazing options

Lead time

35–45 days

Warranty

15 yr

Both documents are free — quoted against your project within 24 hours.

AC-90 frame section, thermal-break build. Photographed section, hardware and installation detail below.

Read the section

High-end custom is decided in the section drawing, not the brochure. These four layers are held to specification on every AC-90 unit we ship.

6063-T5 multi-chamber frame

Extruded alloy with internal chambers for stiffness without weight.

PA66 thermal-break bar

Glued and bonded polyamide isolation, continuous across the build.

EPDM double gasket

Two replaceable compression lines for air and water tightness.

Hardware & fixing

Concealed fixing with continuous drainage.

Technical detail

The section, the hardware and the fixings — photographed, not rendered. This is the level of detail your drawing office specifies against and your site crew installs to, on every unit that leaves the line.

Profile cross-section

Multi-chamber 6063-T5 extrusion with a continuous PA66 thermal-break bar. The section is where stiffness, insulation and drainage are decided in one drawing — and the four values in the performance band above are read straight off it.

Alloy

6063-T5, multi-chamber

Thermal break

PA66 polyamide, continuous

Gasketing

EPDM, two replaceable lines

Drainage

Concealed, positive slope

Frame profile — three internal chambers give the stiffness without the weight.

Thermal break bar visible in the window frame cross section — The continuous PA66 break bar isolates the outer and inner aluminium.

Window frame corner joint with glazing and gasket line — Corner joint with the glass pack in place — one continuous gasket line, concealed drainage.

The polyamide bridge breaks the conductive path that would otherwise run across the frame.

Door sections on the same platform, sized for the leaf load and the threshold.

Thermal break bar detail on the extrusion line — Thermal break bar, second detail — continuous PA66 from the extrusion line.

Hardware

Pre-fitted and function-checked on every sash before it leaves the line. Multi-point locking, key-operated handles and marine-grade sets are scheduled per project and listed in the hardware schedule that ships with the shop drawings.

Locking

Multi-point, per sash

Handle

Key-operated option

Finish

Marine-grade available

Check

Cycled at the factory

Multi-point locking bolt points on a door leaf edge — Multi-point locking — the handle drives bolt points top, bottom and on the meeting stile, not one edge.

Window handle with base plate and strike set and fixing screws — Handle, base plate and strike set — the full set, fitted and cycled before dispatch.

Black window handle with key cylinder — Key-operated handle for ground-floor and security specifications.

Chrome finishing aluminium window handle — Chrome finish for clean, high-traffic interior positions.

Window handle and strike plate with fixing hardware — Strike and fixings match the handle set; nothing is improvised on site.

Black multi-point lock set on a timber interior — The same locking discipline on the wood-aluminium interior line.

Installation

Factory-assembled and pre-glazed, so the tolerance work is done under a roof. On site the build is a three-zone detail — air, insulation, weatherproofing — and every crate arrives with the install guide and the sealant schedule for that market.

Arrives

Factory-assembled

Detail

3-zone: air / insulation / water

Guide

Per-crate install sheet

Sealant

Scheduled per market

Powder-coating line for the glazed sash units before packing — Every glazed unit runs the full pre-treatment and powder-coat line before it leaves the shop.

Surface pre-treatment line ahead of the powder-coating booths — Pre-treatment and powder coat — every profile runs the surface line before assembly.

Water penetration test — the spray rig running on a glazed unit at the quality gate — The test rig — air, water and cycle spot tests at the quality gate, before crating.

Worker hand-finishing a door leaf — wiped down and checked before packing — Every door leaf is finished by hand — sanded, checked and wiped down before packing.

Overview

Acoustic windows are specified to a measured figure rather than a style: asymmetric laminated glazing, sealed frame cavities and a dedicated acoustic gasket cut the sound that reaches the room. AC-90 is certified to Rw 45 dB — a 47 dB glazing unit in a dual-cavity frame — for arterial roads, airport radii and rail frontages.

Acoustic configurations pair asymmetric laminated glazing with a sealed dual-cavity frame and a dedicated acoustic gasket — the same recipe used in airport-adjacent residential projects, laboratory certified to Rw 45 dB with a 47 dB glazing unit.

The frame is a dual-cavity build and the glazing is asymmetric laminated — heavier pane on the outside, lighter on the inside, which is what breaks the resonance a matched pair would pass. Configured per position after a noise survey, quoted to the indoor target level, not to a catalogue figure.

AC-90 installed view — AC-90 — Acoustic Windows

Models

Every AC-90 ships as one of the configurations below — specify by model code in your window schedule and it quotes line by line.

AC-90 TILT

Tilt-turn acoustic sash
47 dB laminated IGU

AC-90 CAS

Hinged acoustic sash
47 dB laminated IGU

AC-90 FIXED

Fixed acoustic panel
47 dB laminated IGU

AC-90 CORNER

Fixed corner acoustic unit
47 dB laminated IGU

AC-90 configurations in place — AC-90 — configurations in place

Specifications

Acoustic: Rw 45 dB certified (47 dB glazing units)
Glazing: Asymmetric laminated, 24–42 mm total
Frame: Sealed dual cavity, acoustic gasket
Opening: Tilt-turn, casement or fixed
Typical sites: Arterial roads, airport radius, rail frontage
Standards: EN ISO 10140-2 laboratory certified

AC-90 — profile and glazing detail

Material & craft

The layers held to specification on every AC-90 unit — the section drawing above, written out.

Glazing unit

A 47 dB laminated IGU with a 24–42 mm asymmetric core — the two different glass masses break the resonances a symmetric pane carries through.

Frame build

A sealed dual-cavity frame with the dedicated acoustic gasket; airtightness Class 4 is part of the acoustic build, because an unsealed joint is a leak in the rating.