Casement Window/Door (We-70)
TOSTEM WE-70 Casement Window / Door — Overview & Features
The WE-70 series from TOSTEM is a popular line of aluminium windows and doors designed for residential and commercial buildings, offering a balance of performance, durability, and affordable quality. The WE-70 range includes casement windows, casement doors, and other window/door types built on a common aluminium frame system with consistent performance standards.
What Is a Casement Window / Door?
A casement window is a hinged window that swings outward like a door, typically operated with a handle or crank. Casement doors are similar but sized and designed for passage, often integrated with locks and thresholds for building entry/exit.
- In the WE-70 series, both windows and doors share a modular aluminium framing system with options for single or double leaf openings, suitable for ventilation, light, and access.
Key Specifications (WE-70 Series)
Frame Depth: 72 mm — robust aluminium profile for structural strength and stability. Height of Sill: 35 mm — practical threshold detail at the base. Glass Thickness: 5 – 8 mm (single glazing options). Performance Standards:Wind Resistance: approx. 500 – 800 Pa (JIS standard).
Water Tightness: W-2 (150 Pa).
Air Tightness: 8m/h.m
Noise Insulation: approx. 25 dB.
These standards indicate reliable performance for everyday weather conditions and environmental comfort.
🔑 Features & Benefits
✅ Quality & Security
High-quality security lock ensures good protection against forced entry.
Easily adjustable outer-panel lock for smooth operation and adjustment.
🌧 Weather & Comfort
Watertight sill with drainage system helps prevent rainwater ingress.
Air-tight and water-tight performance based on Japanese Industrial Standards (JIS).
🦟 Convenience
Internal sliding insect screen available to keep bugs out while allowing ventilation.
Easy-grip handles for comfortable opening/closing.
🪟 Design Flexibility
Can be combined with fixed windows (without additional transoms) for larger configurations and daylight optimization.
- Available in multiple colours such as Natural White, Natural Silver, Shine Grey, Autumn Brown, Natural Black, etc., to match various architectural styles.
🚪 Casement Window vs Door in WE-70
| Feature | Casement Window | Casement Door |
|---|---|---|
| Usage | Window opening for ventilation & light | Entry/exit, larger access |
| Construction | Hinged sash in a frame | Full-height leaf with threshold |
| Sizes | Typically smaller | Full door heights (~1800 mm+ for standard) |
| Performance | Window-rated sealing | Door-rated with secure locking |
