The Velux GPL Top-Hung range of roof / loft windows combines the dual functionality of a top hung roof window
with a means of escape / access window. Powerful, yet gentle, springs assist the openeing of the window allowing an opening of up to 45° to be achieved. For easy
cleaning of the window, the top control bar operates both the ventilation flap and centre-pivot function. Installation of the window is possible foe roof pitches between 15° and 55°, and up to 75° with the use of special
springs.
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