Why is it acoustically better?

Mass, dissimilar materials and the bonded interface break resonances that single-material frames pass — that is how the certified 45 dB configuration is reached.

Can we match a specific RAL outside and stain inside?

Yes — the two skins are manufactured independently, so exterior RAL and interior timber finish are specified separately per project.

WA-70 Wood-Aluminium Windows

Timber inside, aluminium outside · certified 45 dB acoustic

Wood-aluminium window wall with a dark timber interior finish

WA-70

The grain on the inside. The armour on the outside.

Timber inside, aluminium outside · certified 45 dB acoustic

Configurations

Glazing options

Lead time

40–50 days

Warranty

15 yr

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

WA-70 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 WA-70 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

A wood-aluminium window combines a solid timber interior with a corrosion-proof aluminium exterior, structurally bonded into one profile. WA-70 delivers the warmth of ash, oak or pine inside and weatherproof cladding outside, with a certified Rw 45 dB acoustic configuration and low-U thermal performance for residential façades.

Structurally bonded timber-aluminium sections: solid wood finish indoors, corrosion-proof aluminium clad outdoors. The dual material build is the strongest thermal and acoustic performer in the range — Rw 45 dB certified units available.

WA-70 installed view — WA-70 — Wood-Aluminium Windows

Models

Every WA-70 ships as one of the configurations below — specify by model code in your window schedule and it quotes line by line.

WA-70 TILT

Tilt-turn, ash interior
47 dB laminated IGU

WA-70 HINGED

Inward / outward hinge
Triple IGU option

WA-70 FIXED

Fixed panoramic leaf
Low-E double IGU

WA-70 CAS

Casement, oak interior
Double IGU

WA-70 ACOUSTIC

Rw 45 dB certified unit
47 dB laminated IGU

WA-70 configurations in place — WA-70 — configurations in place

Specifications

Construction: Timber core + aluminium outer, structural bond line
Timber species: Thermally modified ash, oak or pine, interior finish
Outer cladding: Anodised or powder-coated aluminium, RAL
Acoustic: Rw 45 dB certified configuration (47 dB glazing)
Thermal: Low-U configuration, triple IGU compatible
Opening: Tilt & turn, hinged, fixed, casement
Sash size: Up to 1,600 × 2,200 mm single sash
Standards: Tested to EN 14351-1, EN ISO 10140-2 acoustic

WA-70 — profile and glazing detail

Material & craft

The layers held to specification on every WA-70 unit — the section drawing above, written out.

Structural bond

Solid thermally modified ash, oak or pine inside; corrosion-proof aluminium outside. The two are bonded into one profile — not sandwiched.

Acoustic build

The Rw 45 dB certified configuration pairs the 47 dB laminated IGU with the dissimilar-material bond line that breaks resonances.

Thermal case

Triple-IGU compatible, low-U build on the same platform; exterior RAL and interior stain are specified separately, per project.

What it's worth to you

Panoramic fixed glazing installed across a modern house elevation

The material the design team wants on the inside and the armour the site needs on the outside, under one 15-year warranty.

Sashes to 1,600 × 2,200 mm — large enough for the panoramic fixed leaf, without a second frame system.

Heritage-adjacent renovation stays simple: timber look inside, and the elevation argument ends at the data sheet.

Where it is specified

The sites we build this system for, and what the schedule changes in each one.

High-end residential façades

The material the design team wants inside; the armour the site needs outside.

Acoustic street frontages

Mass, dissimilar materials and the bond line break resonances — 45 dB certified.

Heritage-adjacent renovation

Timber look on the inside keeps the elevation argument simple.

Alpine and cold-climate builds

Triple IGU compatible, low-U configuration on the same platform.

Design-led private villas

Exterior RAL and interior stain specified independently, per project.

Options

Glass

Rw 45 dB certified configuration (47 dB glazing)

Frame

Timber core + aluminium outer, structural bond line

Opening

Tilt & turn, hinged, fixed, casement

Finish

Anodised Natural

Anodised Silver

Anthracite · RAL 7016

Graphite · RAL 7024

Jet Black · RAL 9005

Traffic White · RAL 9016

Cream · RAL 1015

Champagne · RAL 1019

Ash Natural

Walnut Dark

Bronze

Copper

View all finishes

Design features

Solid timber inside, aluminium outside — structural bond

Rw 45 dB certified acoustic configuration

Thermally modified ash, oak or pine interior

Exterior RAL and interior stain specified separately

Triple-IGU compatible, low-U build

Sash to 1,600 × 2,200 mm

Gallery

Frequently asked

The interior timber is pre-finished; a re-coat every 8–12 years keeps it best. The exterior aluminium side needs none.

Same platform

All systems

PF-35

Panoramic Fixed Glazing

Slim-face panoramic glazing · single pane up to 4,000 mm

Tilt-and-turn aluminium window in a modern open-plan interior at night

TT-75

Tilt & Turn Windows

Tilt-turn with vent-height grip · multi-point locking

Impact-rated aluminium windows on a tropical residence, palm trees in front

IR-80

Impact-Rated Windows

Hurricane-impact rated · Miami-Dade approved · laminated core

Aluminium casement window with the sash open onto a lake view

CW-60

Casement Windows

Hinged casement · 90° lock · sash up to 1,200 × 1,800 mm

Specify WA-70 for your project

Request a quote

The Timber inside, aluminium outside configuration is quoted unit by unit, within 24 hours.