FLW are double-glazed, louvre windows with thermally-broken extruded aluminium frames.

The horizontal louvres rotate on pivot bearings, linked to a rack and pinion system, which ensures smooth, synchronized operation.

Visual enhancement: when closed, the glass louvres form a flush surface with the outside of the window frame resulting in a markedly uniform appearance.

Optimal ventilation

With a maximum opening angle of 90 degrees, Fieger louvre windows provide a large free area of ventilation compared to standard window constructions. Their unique design enables them to be used in a variety of applications for the natural ventilation of buildings combined with good insulation qualities and better exploitation of natural light.

Our louvre windows are suitable for a wide range of applications, e.g. facades, conservatories, schools, staircases, production halls, atria and office buildings, to mention only a few.

Natural smoke and heat exhaust vents (NSHEV)

From 31 August 2006, it has been a legal requirement to test and evaluate the functionality of complete units, rather than simply single components, such as drives.

Fieger reacted to these new requirements by introducing “FLW SmoTec” to its existing FLW product range. This system is a certified NSHEV available in a variety of sizes and with different drives. The large free area of opening, combined with the short operating time, make Fieger louvre windows particularly effective for venting smoke and hot gases caused by fire.

A choice of drives

Our louvre windows can be operated in a variety of ways, e.g. directly on the unit by means of a hand lever, an electric motor or pneumatic cylinder. They can also be operated by a remote drive with a traction rod or with a crank handle. Windows which do not exceed 3 square metres usually require only one drive to operate the louvres.

High quality materials – thermally-broken aluminium frames

Fieger louvre windows are produced with thermally-broken aluminium frames, a recent development in window technology. The fact that the extruded frames are a single piece means they are robust and not subject to distortion. The drive mechanism for the louvres consists of glass-fibre reinforced plastic pinions operated by a purpose-built rack made of heavy duty aluminium alloy.

For curtain-walling systems we generally use a continuous aluminium adaptor profile in the same colour as the window, with neoprene insulation in the thickness required for mounting. For other installation situations, e.g. masonry or different glazing systems, suitable adaptor profiles can be provided.

Thermal protection with double glazing

Our standard double glazing has a total thickness of 24 mm (FLW 24 ) or 28 mm (FLW 28) and a U-value of 1.1/DIN EN 673. Sheet metal panels of an appropriate thickness can also be used. We can, of course, supply other combinations with sun-screening, sound-proofing, safety glass, etc. The units are sealed with continuous EPDM profiles.

Maintenance and service from a single source

In addition to our normal guarantee, we can quote you for commissioning and/or maintenance of our louvre windows. We can also arrange delivery and maintenance of your NSHEV System by one of our partner companies.

Please do not hesitate to contact us if you have any questions or enquiries regarding this service.

Design and colour -available according to yourspecifications

Fieger louvre windows can be anodised, powder-coated or spray-painted in all standard RAL colours. Various types of fixed panels are also available. Unusual solutions, such as slanting elements or louvres of different heights in a single unit can also be manufactured.

In addition, the position of the louvre blades can be adjusted to suit site conditions: for example, to avoid internal obstructions.

Pre-assembled – ready for installation

Fieger louvre windows are delivered ready for installation. The actuator is installed on the window and has been adjusted and tested. This enables quick and problem-free installation. As a general rule, delivery times are 3 to 6 weeks, depending on type and size of the order.