← Back to Resource Hub
·
Procurement Checklist
Window Types & Selection Guide
This guide helps buyers choose the right window type for performance, ventilation, and space constraints.
It is written for project procurement and B2B sourcing.
How to choose (decision factors)
- Ventilation control: do you need full opening, secure night ventilation, or minimal airflow?
- Space constraints: will the sash swing into a walkway, balcony, or interior furniture zone?
- Weather performance: coastal wind, heavy rain exposure, and air sealing expectations.
- Thermal & comfort: glazing type and whether a thermal break is required by your spec.
- Cleaning access: for high-rise, inward-cleaning designs can matter.
Rule of thumb
If performance and sealing are the priority, start with casement or tilt & turn.
If space or budget is the priority, sliding is often the starting point.
1) Casement window
Casement windows open on side hinges (inward or outward) and typically provide strong perimeter sealing when closed.
They are frequently chosen for projects that prioritize comfort, weather resistance, and controllable ventilation.
- Best for: bedrooms, living rooms, areas exposed to wind/rain, projects with higher sealing requirements.
- Considerations: sash swing clearance (interior or exterior); hardware specification and restrictors for safety if needed.
Product page: Casement Window
2) Sliding window
Sliding windows move horizontally on tracks. They are space-efficient (no sash swing) and are common where walkways,
balconies, or furniture layouts make swing windows inconvenient.
- Best for: balconies, kitchens over sinks (depending on configuration), corridors, compact rooms.
- Considerations: track drainage and maintenance; roller grade for long-term smooth operation; sealing expectations vary by system.
Product page: Sliding Window
3) Tilt & turn window
Tilt & turn windows provide two modes: tilt for secure top ventilation and turn for full inward opening.
This makes them useful for controlled airflow and easier exterior glass cleaning from indoors.
- Best for: bedrooms and living spaces where secure ventilation and easier cleaning are priorities.
- Considerations: hardware specification is important; confirm restrictor needs and operational preferences for occupants.
Product page: Tilt and Turn Window
4) Top-hung window
Top-hung (awning-style) windows hinge at the top and open outward at the bottom. They are commonly used for ventilation
while helping shed light rain away from the opening.
- Best for: bathrooms, kitchens, utility spaces, or as part of a combined façade system.
- Considerations: opening size and actuator choice; confirm safety and access requirements.
Product page: Top Hung Window
Door options (common with window packages)
Many projects bundle doors with window packages for finish consistency and simplified procurement.
Typical choices include sliding doors for patios and swing/casement doors for entry or balcony access.
Selection by scenario (quick guide)
- Coastal / high-wind: start with higher performance systems and share project wind/water targets early.
- Energy-focused projects: confirm glazing build-up and whether thermal break is required.
- Limited interior space: sliding windows/doors avoid swing clearance issues.
- Need secure ventilation: tilt & turn or top-hung options can provide controlled airflow.
If you are preparing an RFQ, use:
Procurement Checklist.