It is named as Fixed Windows since no window hinges are required. This window can neither be opened nor closed and only flows the sunray to light the room. This window is usually installed to confined, or Air Conditioned room, and will be more effective to install since no air exit possibility as to keep the room always in cool condition.
- Efficiency in per unit cost due to minimum material application and no accessories required.
- Significant possible maximum size design resulting in more maximal room lighting.
- Maximum sound and thermal reducer function