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Libra Skylight

The Libra skylight combines glazing options, versatile opening systems, and custom-fit flashing for both new construction and renovation projects to create a high-performance skylight solution.

The skylight for new construction and renovation

The Libra skylight dome combines a minimalist design with outstanding thermal insulation and excellent U-values. Its strong energy performance makes the system eligible for KfW/BAFA subsidies and ideal for sustainable projects. As an easy-to-install complete system, Libra is suitable for both new construction and renovation and offers a wide range of nominal sizes, matching flashing rings, and opening systems tailored to specific requirements for daily ventilation. Additional safety features and the Libra NRWG variant, which functions as a natural smoke and heat exhaust unit, round out the system into a versatile daylight solution for modern flat roofs.

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Features

Your advantages at a glance

Various nominal sizes & flanges

Thanks to its various standard sizes and matching flashing rings, Libra can be precisely adapted to any roof opening, offering maximum flexibility in planning, whether for new construction or renovation.

Easy-to-install complete system

The easy-to-install complete system, along with specialized renovation solutions, enables the quick and clean replacement of existing skylights from all major manufacturers—ideal for retrofitting existing buildings.

Different types of glazing

The skylight is available with various glazing options, allowing the lighting effect, energy efficiency, and sound insulation to be tailored to the specific needs of the building.

Optional roof hatch

Optionally, the Libra skylight can be configured as a roof access hatch, providing safe access to the roof.

A wide range of protective features

With additional protective features such as ELS-Silent (sound insulation), a dark dome, insect screens, sun-reflect (thermal protection), or a snow-load dome design, Libra becomes a highly functional skylight that effectively combines comfort, safety, and performance.

Optional fall protection

Skylights are not structurally designed with fall-through protection. Therefore, they must be equipped with appropriate coverings or safety netting to prevent people from falling through or falling from the skylight. INDU LIGHT safety systems are available for skylights and continuous rooflights and can be retrofitted to current INDU LIGHT products.

Top trim

New Construction: Fiberglass Reinforced Plastic (FRP) Flashing

The double-walled GRP coping with integrated insulation and high insulation values is available in 30-mm or 60-mm thicknesses and in three standard heights up to 500 mm; taller versions are available upon request.

New Construction: Steel Capping Ring

The steel flashing, which comes standard with mineral fiber insulation and a PVC roof flashing profile, is specifically designed for the Libra NRWG. It is available in three heights ranging from 300 to 600 mm.

Renovation: PVC renovation frames

Compatible adapter for optimal connection of the hood to the existing mounting flange of all major manufacturers.

Renovation: PVC renovation collar

A functional multi-chamber system that can be optimally adapted to existing countertop edges. The 60 mm-thick adapter has a height of 200 mm.

Renovation: Steel renovation collar

This steel roof collar, which comes standard with mineral fiber insulation and a PVC roof flashing profile, is ideal for raising the height of existing roof collars. The roof collar, which is up to 62 mm thick, has a height of 250 mm.

Glazing

Two-tone: opal / opal

U-value: 2.7 W/m²K
U-value: 2.5 W/m²K
Sound insulation value: approx. 20 dB
Light transmission: approx. 67%

3-layer: opal / opal / opal

U-value: 1.8 W/m²K
U-value: 1.8 W/m²K
Sound insulation: approx. 22 dB
Light transmission: approx. 55%

4-layer: opal / 2x clear / opal

U-value: 1.5 W/m²K
U-value: 1.5 W/m²K
Sound insulation value: approx. 22 dB
Light transmission: approx. 57%

ELS 1: Opal PMMA / Clear PC 32

U-value: 0.91 W/m²K
U-value: 0.88 W/m²K
Sound insulation value: approx. 22 dB
Light transmission: approx. 32%

ELS 2: Opal PMMA / Clear PC 2x16

U-value: 0.82 W/m²K
U-value: 0.85 W/m²K
Sound insulation value: approx. 23 dB
Light transmission: approx. 25%

Opening system

Chain drive, 24 V or 230 V

Elegant opener with a high-quality metal finish and soft-close function, which can be connected to a smart 24V control system or to a power supply line with a ventilation switch (optional with concealed cable routing).
Stroke: 350 or 600 mm

Spindle drive, 24 V or 230 V

Quiet door opener with a sleek metal finish that can be connected to a smart 24V control system or to a power supply line with a ventilation switch.
Stroke: 300 or 500 mm

230V spindle drive

Affordable opener with a durable plastic housing (300 mm stroke) or metal housing (500 mm stroke).
Stroke: 300 or 500 mm

Roof hatch

Electric roof hatch with 24V motorized openers and white housing fittings, or manual roof hatch with gas springs (with window handle or spring bolt in combination with electric ventilation).

Manual spindle drive

Manual opening of the skylight using a hand-operated crank handle.
Stroke: 280 mm

References

Insiders who see the whole picture

System architecture

A combination of top-quality components

The design of the Libra skylight combines high-quality materials, numerous configuration options, and maximum functionality.

System architecture

Libra offers great flexibility thanks to its customizable glazing options made from high-quality plastics. The clean-lined design minimizes dirt buildup and allows rainwater to drain freely. The torsion-resistant multi-chamber profile, combined with a dual sealing system, ensures high stability, reliable sealing, and excellent energy efficiency.

The skylight can be designed as a fixed or ventilated unit. The ventilation function can be easily retrofitted at any time. Three product lines are available for electric opening: Industrial openers for high-ceilinged halls starting at approximately 6 m, Office openers for ceiling heights between 4 m and 6 m, and Home openers for residential-style areas with ceiling heights up to 4 m. This allows the right solution for ventilation or smoke extraction to be implemented for every application.

The fiberglass-reinforced plastic (FRP) top plate forms the sturdy foundation of the entire structure and ensures a secure mounting for all hardware, opening systems, and safety-critical components. Alternatively, a steel top plate or various adapter solutions are available for renovation projects.

A: Glazing options / B: Sleek design / C: Rigid multi-chamber profile / D: Opening systems / E: Top rail

Contact

Do you have questions about industrial buildings?

We support you from the initial concept through to implementation—with well-designed daylighting systems and technical precision. Contact us for a personalized consultation.

INDU LIGHT Produktion & Vertrieb GmbH

Lauterbachstraße 32, 78586 Deilingen

Peter Mattes

Außendienst, 78586 Deilingen

Jens Schuler

Außendienst, 78078 Niedereschach

Christopher Berliner

Außendienst, 14469 Potsdam

Stefan Gehring

Außendienst, 89335 Ichenhausen

Andreas Haubold

Außendienst, 27299 Langwedel

Mirko Matthias

Außendienst, 06179 Teutschenthal

René Hochstein

Außendienst, 57368 Lennestadt

Simon Hanel

Außendienst, 74226 Nordheim

Dominic Stephens

Außendienst, 48429 Rheine

Alexander Gust

Außendienst, 45131 Essen

Natalie Mrozek

Außendienst, 50672 Köln

INDU LIGHT Produktion & Vertrieb GmbH

Willi-Brundert-Straße 3, 06132 Halle/Saale

INDU LIGHT West Vertrieb GmbH

Borkener Strasse 136, 48653 Coesfeld
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