Specification & technical details of the Vent-trex unique, fitted above window frame extract trickle ventilation system.
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Window Extract Fan Product Details
Illustration of the ease of fitting of the Vent-trex Extract Fan ventilation system and how it overcomes the issues and problems of existing glazed-in and through-wall methods of window ventilation.
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Extract Fan Window Ventilation Fitting
Illustrating how the Vent-trex Extract Fan Trickle Ventilation is fitted above either new-build or replacement window frame.
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Window Extract Fan Trickle Vent Specifications
Extract of air permeability, watertightness and wind resistance test results report.
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Window Extract Fan Product Images
Before and after images of real-world installations of the Vent-trex Extract Fan over-frame ventilation systems and the obvious benefits.
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Specifiers
Combined extract and background overhead window ventilator units: VENT-TREX.
- Operation & Maintenance