Casement Window | Thermally Broken

TB Series     (click for more products)

Traditionally linked to continental architecture, casement windows are increasingly chosen as much for looks as for function. Single or double casements can be manufactured within a common frame. Where there are large fixed panels, ventilation can be taken care of with a casement at each end.


Rylock casement windows take advantage of cross-breezes for ventilation. As a design element, they can help bring your energy rating towards 6 stars, especially when specified on opposing sides of a room. TB Series casements feature stays that hinge the sash open a full 90 degrees, encouraging ventilation. A selection of fly screens is available, in hinged or fully removable configurations.

Like all TB Series products, casement windows have the inner & outer faces of the product separated via a polyamide insulator. The outer frame is shielded internally with a hardwood reveal, which makes for an energy efficient window. TB Series windows are only available as double glazed, but can incorporate high performance glass in the double glazing.

For product features & indicative sizing, please download the product brochure below, where all technical drawings are also available.