French casement windows are very similar to standard casement ones and function essentially like French doors. They consist of two sashes, one primary and one secondary. Each swings open like a door, mounted on side hinges but without a central mullion that detracts from the view. This allows double French windows to create a larger open space. Enjoy more light, better views, better ventilation and even the additional safety of a potential fire escape.
French Casement Windows with no Central Mullion
In the past, multi-sash windows usually had a fixed central post or mullion which divided the sashes. The disadvantage was a having a large wood post dividing the opening. French casements solve this problem by having a primary and secondary sash where the secondary locks into the primary. This is also called a "flying mullion" and preserves the same functionality while allowing each sash to swing out. Enjoy the full unobstructed view your windows have to offer. Further features include:
- Elegant look with unrestricted views
- Easy-clean design with inswing casements
- Available in multiple materials and glazing options
- Excellent thermal and acoustic insulation
- Can be fitted with custom security glazing
It is important to remember however that with the flying mullion, both sashes cannot be tilted simultaneously. The primary sash can be tilted and opened and the secondary can only swing open. For individual sashes over five feet wide however, a mullion is recommended for structural support.