Sashment – Spring Balanced Sash & Opening Casement

This is a cross between a Spring Balanced Sash Window and a Casement Window, as it features both types of opening. Sliding sash windows are a common component of traditional and historic buildings, however while they contribute to preserving the style of these buildings, traditional sash windows are not always so easy to escape through. The solution is a Timber sash fire escape window; it has all the common sash functionalities and traditional looks, plus it meets with certain fire regulations and can open up fully to reveal the entire window opening, for emergency escape in case there is a fire.

Additional Features of This Window System

  • Possibly the best Fire Escape option as the entire window can open inwards, unlike any other sash window system.
  • To maintain a traditional appearance from the outside, this window has the same dimensions and appearance of a Traditional Box Sash and is fitted the same way into a buildings reveal. However, inside the box style frame is a Spring Sash window, hung like a casement on Parliament hinges to allow it to open like a casement inwards in an emergency, but for day to day use it can be opened sliding up and down like a normal sash window.
  • Another advantage of this type of window is the ease of maintenance – since it can open in, the outside glass panes can be easily cleaned.  (Note: the opening in feature is only designed for occasional or emergency use)
  • U-value = 1.3 W/m2K (Measured on Redwood items)

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For any additional options & customization, feel free to contact us.