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Bringing daylighting and natural ventilation together

As specifiers look to improve the energy-efficiency of their projects through the greater use of natural light and effective ventilation strategies, leading product manufacturer Passivent can help streamline the process with its Litevent Airstract® rooflight ventilation system.

Suitable for installation on flat or low-pitched roofs, Passivent’s Litevent Airstract has been specifically developed to reduce energy demands in commercial buildings by combining controllable natural ventilation and natural daylighting functions in one unit.

Manufactured from robust aluminum, the unit’s thermally insulated upstand minimises heat loss and its triple skin polycarbonate glazing is available in a clear, diffused or bronze finish.

By enabling controllable ventilation with minimal energy consumption and reducing reliance on artificial lighting, Passivent’s Litevent Airstract is ideally suited for use across a variety of sectors particularly educational and community buildings, where the need to save on both operational carbon emissions and costs is vital.

The unit is resistant to driving and deluge rain, includes a 4mm insect screen in the cowl and is also available in a range of shapes and sizes, including square and rectangular options, offering greater flexibility in terms of designing daylight and ventilation geometric free areas.

With almost 40 years’ experience Passivent can offer a range of technical resources and support to specifiers at early design stage, helping them to achieve the best possible natural ventilation and daylighting strategy and ultimately creating better buildings and healthy spaces.

To find out more, visit, call 01732 850 770 or email Follow us on LinkedIn to be kept up to date with the latest news.

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Litevent Airstract® Rooflight/Ventilator

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Contact us today to discover more about our extensive range of natural and hybrid ventilation products and the technical support services we can offer.

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Passivent is a division of Building Product Design Ltd.

Other subsidiaries include Glidevale Protect, a specialist in ventilation solutions, condensation control and energy efficiency across the built environment and Kingfisher Louvres, manufacturer of aluminium louvre systems.

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