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ventilation systems

Feel natural light, venting and safety –
with JET and Greschalux

The JETgroup and Greschalux are specialists for the building of constructions for natural lighting, daily ventilation and smoke and heat exhaust extraction systems.
The certification of our services rendered and the recognition of the used materials guarantees you safety in every situation.

Pleasant daylight at working places influences the wellbeing of members of staff in a positive way. Natural illumination in a salesroom or a shopping centre let people enjoy shopping. Sun and daylight always have a positive influence. We let them in.

Modern industrial buildings, gyms, administrative buildings, shopping and leisure centres belong to the traditional areas for the use of JET and Greschalux daylight, natural ventilation and smoke exhaust technology.
Attractively priced standard solutions are important for planners and architects. Special sizes and constructions meet the needs of architectural creativity and functional requirements at the same time.

It does not matter whether plastics like polyester or classic building materials like glass and aluminium are required. JET and Greschalux masters horizontal as well as vertical daylight and natural ventilation control. In cooperation with building owners, architects, planners and construction companies qualified staff members develop concepts starting with consulting, technical planing fabrication and ending in installation.

An impression of our large product range:

JET VARIO NORM – the most sold continuos roof light system

technical facts:
material: polycarbonate multiwall sheet, opal or clear, 2to 6skinned
light transmission: 80 – 35%, dependent on the material and the colour
heat insulation (uvalue): from 3,5 W/m²K up to 1,28 W/m²K
functions: fixed or with ventilation or smoke and heat exhaust units

GRILLODUR – for a very high demanding

technical facts:
material: multiple fiberglass panel
sun protection: energy transmission up to 28%
heat insulation (uvalue): up to 0,89 W/m²K
low weight, large span, resistant to impact and to all types of environmental pollution
functions: designed as a continous roof light or as a fiberglass wall in the facade

SMOKEJET – ventilation and smoke and heat exhaust through roof and side

technical facts:
material: aluminium (insulated or noninsulated)
actuation: pneumatic cylinder, electric drive (24V or 230V) many installation possibilities (e.g. in the roof, into a continuos roof light or in the facade)
functions: daylight, ventilation at all weather conditions, smoke and heat exhaust

JET and GRESCHALUX SKYLIGHTS – as a smoke and heat exhauster very effective

technical facts:
heat insulation (uvalue): 2,70 W/m²K (2skinned); 1,80 W/m²K (3skinned)
light transmission: 78% (2skinned, opal); 59% (3skinned, opal/opal/clear)
ventilation: electric drive or pneumatic cylinder
functions: fixed, with ventilation or as a smoke and heat exhauster


Teamwork is the basis for putting a plan into action.
We look forward to being there for you right from the beginning.

more information...

JET Tageslicht & RWA GmbH
Weidehorst 28
D32609 Hüllhorst
T +49 5744 503 – 0
F +49 5744 503 – 40
E info@jet-gruppe.de
I   www.jet-gruppe.de
Greschalux GmbH
Schackenburger Str. 3
D33818 Leopoldshöhe
T +49 5208 992 – 0
F +49 5208 992 – 150
E info@greschalux.de
I   www.greschalux.de

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