ABOUT Top Hung Window FAQ
Lift the sash by disengaging the lock via the handle or lever. The bottom edge swings outward, supported by friction stays or a hinged arm. No additional fasteners are needed when open.
They expel warm air at ceiling level while pulling in cooler air from below, optimizing airflow even in gentle breezes.
Yes! When partially opened, the sash acts as a canopy, blocking rain while permitting airflow—ideal for humid or rainy climates.
- 铝质: Durable, slim profiles for modern designs.
- 玻璃钢: Affordable, low-maintenance, and energy-efficient.
- Wood: Natural aesthetics for traditional settings.
- Composite: Combines strength and weather resistance.
- Bathrooms/kitchens (privacy + ventilation).
- Clerestory windows in hallways.
- Commercial facades and high-level openings with limited external access.
- uPVC: Up to 1.2m × 1.2m (48″×48″).
- Aluminum: Custom widths up to 2m with reinforced frames.
Multi-point locking systems secure the frame at multiple points. Anti-lift hooks prevent forced lifting, while restrictors limit opening for child safety.
Yes! High-performance seals, thermal breaks, and double/triple glazing reduce heat loss and drafts, supporting energy savings.
- Lubricate hinges/stays annually with light machine oil.
- Clean frames and seals with mild detergent; replace worn weather-strips.
Top-hung windows excel in rain resistance and ceiling-level airflow, while casement windows offer larger openings but lack built-in rain shields.
