Litevent Airstract® Rooflight/Ventilator

The Litevent combines a controllable ventilator and a rooflight, for installation on flat or low-pitched roofs. It is designed to contribute to the reduction of energy demand in commercial buildings.

Features and benefits

• Combines natural ventilation and natural daylighting functions in one unit.
• Provides controllable ventilation with minimal energy consumption.
• Reduces the need for artificial lighting, thereby further reducing energy expenditure.
• Thermally insulated aluminium upstand and triple skin polycarbonate glazing (clear, diffused or bronze options) minimise heat loss. 
• Unit has been subjected to large, soft body impact testing by BRE and may be considered non-fragile to HSG33.
• Driving and deluge rain resistance demonstrated by test.
• Height of upstand will accommodate both warm and cold deck constructions without the need for an additional timber kerb.
• 4mm screen in cowl excludes large nesting insects.
• Available in four different square sizes and one rectangular size. 
• Varying sizes offer different daylight areas and different ventilation free areas.