Facade Windows
Thermal-break aluminum windows: top-hung, side-hung, tilt-and-turn and projecting types. Hidden sash windows sit flush with the facade plane for a continuous glazed look.
Every facade needs openings. Hanart engineers facade windows, curtain wall doors and signature entrance systems as an integrated part of the envelope — performance, hardware and weather-tightness from a single supplier.
Thermal-break aluminum windows: top-hung, side-hung, tilt-and-turn and projecting types. Hidden sash windows sit flush with the facade plane for a continuous glazed look.
Swing doors, sliding doors and double-action doors engineered into, or independent of, the curtain wall grid — with drive and hardware options for commercial use.
Signature ground-floor entrances: glazed entrance walls, automatic sliding doors, revolving doors and full-height glazing — the statement point of the building, engineered for daily traffic.
Featured application: entrance systems coordinate with glass curtain walls, point-supported glazing and slim steel frames for a continuous design language at ground level.
Windows and doors are the weakest link in weather-tightness if underspecified. Hanart tests every opening to the same air, water and wind standards as the surrounding wall.
| Parameter | Facade Windows | Entrance Doors |
|---|---|---|
| U-value (frame) | 1.2–1.8 W/m²·K | 1.4–2.2 W/m²·K |
| Watertightness | Class 6–8 (EN 12208) | Class 5–7 |
| Airtightness | Class 3–4 (EN 12207) | Class 3 |
| Wind load resistance | ≥ 1.8 kPa | ≥ 1.5 kPa |
| Acoustic insulation | Rw 34–42 dB | Rw 33–40 dB |
| Hardware cycles | 20,000+ cycles | 1,000,000+ cycles (auto doors) |
| Fire rating (option) | EI 30–60 | Egress & EI 30/60 |
When windows and doors are separate packages, interface failures appear in exactly the joints nobody owns. Supplying openings within the facade scope means one engineering team, one QA program and one warranty for the whole envelope.

A window wall rests on the floor slab and transfers its weight to the structure; a curtain wall hangs off the slab edge and carries only its own weight plus wind loads. Window walls are typically more economical mid-rise, while curtain walls allow larger uninterrupted glass spans.
Yes. We engineer main entrances, revolving doors, automatic sliding doors and glazed entrance walls as an integrated part of the facade — one supply point, one QA system, and weather-tight interface details with the surrounding curtain wall.
We provide thermal-break aluminum windows (top-hung, side-hung, tilt-and-turn, projecting), hidden sash windows flush with the facade plane, and unit-integrated windows for unitized curtain walls — all tested for air, water and wind resistance.
Yes. Escape doors, fire-rated glazing within entrance systems, and panic hardware are engineered to the project's fire egress codes, with certification documentation supplied with the door package.
Accessible and penetration glazing (glass balustrades, walk-on glass, glazed walkways at entrance level) can be added to the same scope. We specify laminated/toughened glass with structural supports and edge details compliant with fall-protection codes.
Send your ground-floor plans and opening schedule. We'll design the entrance system and window package with performance data and pricing.