A aluminum casement window is the workhorse of project fenestration: thermally broken aluminium profile, 5+12A+5 double glazing, sashes opening outward and sealing on a compression gasket. Priced per square metre of window area, a whole elevation can be costed straight from the drawings.
What the standard build includes
| Item | Spec |
|---|---|
| Profile | Thermal break aluminium, powder coated |
| Glazing | 5 + 12A + 5 mm insulated unit |
| Opening | Outward casement, single or double sash |
| Colour | RAL to order |
| Pricing basis | Per square metre of window area |
| MOQ | 20 m² |
Why casement suits wind-driven-rain climates
- The compression gasket is the seal: an outward-opening sash presses against its gasket as wind load rises – the harder the weather pushes, the tighter the seal. Sliding windows seal on brushes and pay for it in storm-driven rain.
- The thermal break is in the profile, not an add-on: the polyamide strut separates outer and inner aluminium, which is what keeps the 5+12A+5 unit’s insulation from leaking out through the frame.
- Per-m² pricing keeps the estimate honest: send elevations with window schedules, and each opening is costed on its true area rather than a per-window guess.
Specifying for a project order
- RAL colour and finish are chosen against the facade palette; powder coating is the standard route and both sides can differ.
- Single or double sash follows the opening width and the escape/access plan – worth fixing before the shop drawings, not after.
- Export packing follows the same container logic as the rest of the building materials range; mixed containers with sanitary ware and boards are routine.
- MOQ 20 m² – one villa elevation usually clears it; sample sashes for mock-ups are handled separately.
FAQ
Can the glazing spec change?
Yes – the 5+12A+5 insulated unit is the standard build; acoustic or tropical upgrades are quoted against the project’s performance targets when you enquire.
How do you quote from drawings?
Request a quote – Send the elevation drawings and window schedule – we return a per-m² FOB quotation and a container-loading plan in one pass.