Suitable applications
- Contemporary new-build homes
- Extensions and renovations
- Feature elevations
- Projects prioritising clean external lines
Setting new standards in manufacturing excellenceRequest a free quote ↗RESIDENTIAL WINDOWS
Flush casement windows
A thermally broken outward-opening aluminium casement with a flush external option, slim sightlines and project-specific side-hung or top-hung configurations.
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Available choices
- Side-hung and top-hung outward openings
- Slim or heavy-duty sash subject to size
- Double or triple glazing
- Security hardware and concealed hinge possibilities
What to send us
- Window schedule or opening sizes
- Opening styles and directions
- Frame colour
- Glass requirements
- Handle and hardware preferences
- Delivery postcode
VERIFIED SYSTEM DATA
Technical performance
Figures reproduced from the supplied Cortizo Casement System technical brochure.
- Flush section
- 79 mm frame / 79 mm sash
- Thermal break
- 32 mm polyamide strip
- Profile thickness
- 1.6 mm window profiles
- Glazing capacity
- 23 mm minimum / 44 mm maximum
- Thermal performance
- Uw from 1.0 W/m²K with qualifying triple glazing
- Acoustic insulation
- Rw up to 45 dB
- Air permeability
- Class 4
- Watertightness
- Class E1200
- Wind resistance
- Class CE 2400
- Security
- PAS 24 reference test passed
Maximum sash sizes and weights
Sash typeMaximum width × heightMaximum weight
Slim sash - side hung950 × 1,300 mm35 kg
Slim sash - top hung1,200 × 1,300 mm50 kg
Heavy-duty sash - side hung750 × 1,750 mm42 kg
Heavy-duty sash - top hung1,800 × 1,800 mm100 kg
Performance values depend on typology, size, glazing and specification. Uw 1.0 W/m²K is shown in the brochure for qualifying triple glazing (Ug 0.5); double glazing is shown from Uw 1.4 W/m²K (Ug 1.0). Acoustic Rw is stated as up to 45 dB. Maximum sash weights and dimensions must be checked for the selected typology. The PAS 24 result relates to the brochure’s stated reference test specimen.
PROJECT GALLERY
Flush casement windows installations.
TRADE QUOTATIONS
Have drawings or a schedule?
Email them to info@aluflexltd.com, together with your company name and project postcode.
Configurations, performance, sizes and availability depend on the selected system and complete project specification. Final details are confirmed with every quotation.