Performance

Thermal Break Aluminium Windows

Heat moves through an aluminium window at two places: across the metal and through the glass. The Adam Alux thermal break line addresses both. The frame side runs on polyamide bridges in sections from 110 to 118 mm deep, and the glass side runs on insulating units, 5 mm-20 A-5 mm standard, with the 118 flagship carrying a 5 mm-27 A-5 mm build-up. This page states what each part does, which series carries which figure, and how a thermal specification comes back on the quotation.

The four thermal break lines

The thermal break range is four sections. The 110 five-chamber runs a 1.4 mm wall and is the volume line, the default where a specification calls for a thermal break casement at volume price points. The 110 six-chamber steps the same 110 mm module up to a 2.0 mm wall. The 112 adds 2 mm of depth to the module at a 2.0 mm wall with a flat profile line. The 118 is the six-chamber flagship at 2.0 mm, drawn for larger single lights on exposed facades. Each one is extruded in 6063-T5 primary aluminium on the same lines as the rest of the range.

PROFILE SECTIONS · 6063-T5
WINDOW · 112 VIEW 1
WINDOW · 118 VIEW 1

What the polyamide bridge does

Aluminium conducts heat fast, so the bridge sits in the middle of the section: a polyamide insert that breaks the metal path from the outer face to the inner one. The chambers around it do the rest of the structural work. The outer chambers manage drainage and stiffen the sash against wind load, and the inner ones carry the glazing bead and the hardware. At 2.0 mm the sash section holds larger single lights without intermediate mullions, which is why the 112 and the 118 sit on that wall.

The glass side of the specification

Standard glazing is 5 mm-20 A-5 mm insulating glass with integrated bent spacer bars, and single, double and triple configurations fit the same sight-line and the same glazing bead. The 118 flagship runs a 5 mm-27 A-5 mm build-up, the wider cavity doing more of the work at the glass. Where a project sits in a hot climate, the glazing choice carries dust, heat and daylight together, and the hot climate guide page walks through that combination.

Sealing and drainage

The EPDM foam gaskets seal the sash to the frame, and the foam is chosen for aging resistance, which is what keeps the seal holding through years of open and close. The drainage path is open and self-cleaning, so water that does get past the seal leaves through the designed route rather than working its way into the glazing. The low-profile glazing bead resists dust build-up at the glass line and widens the sight-line.

The doors on the same build

The entrance range uses the same broken-bridge logic on the door side. The catalogue prints heat conduction reduced by more than 70 per cent for the pivot line, reached through the broken-bridge build and its insulation infill, and the entrance spreads carry a thermal insulation level 8 as a catalogue rating. The structural list adds PA66 insulation strips and an automotive-grade sealing strip to the frame, and the fire doors share the build.

Specifying a thermal target

Send the floor height, the position on the facade, the destination market and the glass build-up the project wants if it has one. The reply comes back as a series and a configuration: the section, the wall thickness, the glazing and the finish, with the dimensional pack on PDF and CAD drawings on request. The series chosen against a market page, such as the Australian line, already carries the glazing and finish the market expects.

FAQ

Frequently asked

Which series are thermal break?

The 110 five-chamber at 1.4 mm, the 110 six-chamber at 2.0 mm, the 112 at 2.0 mm and the 118 flagship at 2.0 mm. The 50 and 95 lines are the conventional sections, and a project on one of them can step up to the thermal break range without changing the window concept.

What is the difference between the 110 2.0 and the 112?

The 112 adds 2 mm of profile depth to the 110 module and runs a flat profile line, at the same 2.0 mm wall and the same standard glass build-up. The 110 six-chamber keeps the 110 mm module for projects that must hold the existing layout.

What glass is standard?

5 mm-20 A-5 mm insulating glass with integrated bent spacer bars. Single, double and triple configurations fit the same bead, and the 118 runs a 5 mm-27 A-5 mm build-up as standard.

How is the thermal performance stated?

The section figures, chamber count and wall thickness, are printed per series in the catalogue. The entrance range prints its own ratings, such as heat conduction cut by more than 70 per cent, as catalogue ratings, and project-specific test documentation for a given configuration is confirmed with the quotation.

Can triple glazing be fitted?

Yes. Triple glazing fits the same glazing bead as the standard build-up on the thermal break lines, and the exact configuration is confirmed per project against the climate and the position.

Do the doors match the window thermal build?

The entrance range runs the same broken-bridge build with insulation infill and PA66 insulation strips, and the catalogue prints the figures for the sealed door assembly. Send the opening and the market, and the window and door sections are quoted together.

Send your opening schedule

Series, glazing and finish come back as one quotation, with the full dimensional pack on PDF and CAD on request.