The Hormann ALR F42 Industrial Sectional Doors have window sections that are all the exact same height and are produced without vertical rails. Suitable for door widths of up to 3330mm.
The window sections are made of real glass and offer unobstructed view into showrooms making it the ideal window display door.
Door Size: Max. width 5500mm
Door Size: Max. height 4000mm
Thermal insulation EN 13241-1, Appendix B EN 12428
U-value in W/(m².K) for a door surface 5000 x 5000mm
Standard single pane, laminated safety glass = 6.1
Optional climatic double pane, single-pane safety glass = 2.7
With ThermoFrame = 2.6
For more information view the Hormann Industrial Sectional Doors Brochure.
- Description
- Specification
Fully Glazed Sections for Unobstructed Views
The Hormann ALR F42 Glazing represents a specialised fully-glazed sectional door solution where maximum visibility and uninterrupted sightlines are paramount. Featuring door sections manufactured entirely from glass panels without vertical frame divisions, this door creates spectacular transparent facades ideal for premium vehicle showrooms, retail environments, and architectural applications where the door itself becomes a design feature whilst maintaining industrial-grade functionality.
Uninterrupted Glazing Design
Ideal Showroom Applications
Opening Dimensions
The ALR F42 Glazing accommodates opening widths up to 5500mm and heights up to 4000mm. These dimensions suit typical showroom and retail applications whilst maintaining the structural integrity required for frameless glazed panel construction. The size limitations reflect the additional structural demands of fully glazed sections without intermediate vertical supports.
Glazing Specifications
Standard single-pane laminated safety glass provides basic thermal performance with U-values around 6.1 W/(m²·K) for a 5000 x 5000mm door. Optional climatic double-pane glazing manufactured from single-pane safety glass significantly improves thermal performance to approximately 2.7 W/(m²·K), making the door suitable for heated showroom environments where energy efficiency considerations are important.
Optional ThermoFrame technology further enhances thermal performance to approximately 2.6 W/(m²·K), providing additional energy efficiency for premium installations.
Acoustic Performance
Aluminium Frame Construction
The aluminium horizontal frames provide structural support whilst maintaining narrow sightlines. The frames accommodate substantial glazing weight whilst ensuring secure glass retention and effective weather sealing. Standard anodised E6/C0 finish provides corrosion resistance and contemporary metallic appearance, with RAL powder coating options available for colour-matched specification.
Weather Performance
Despite fully glazed construction, the ALR F42 Glazing achieves respectable weather resistance. Class 3 wind load resistance (120 km/h) ensures stability in exposed locations. Class 3 watertightness (70 Pa) provides effective rain exclusion. Class 2 air permeability controls infiltration. Comprehensive sealing around glazing perimeters and between sections maintains weather protection.
Operation Considerations
Given the glazing weight and size, electric operation is standard specification. Industrial-grade operators sized for glass weight provide reliable automated operation. Soft-start and soft-stop functionality reduces stress on glazing units, extending service life and reducing maintenance requirements.
Safety Features
Comprehensive safety systems include finger trap protection, side trap guards, and spring break safeguards. The laminated safety glass specification provides additional safety benefits, maintaining panel integrity in breakage situations. Electric operators incorporate obstacle detection preventing contact injuries.
Maintenance and Cleaning
The smooth glass surfaces enable straightforward cleaning with standard glass cleaning products. Regular cleaning maintains optical clarity and professional appearance. The durable glass resists scratching and maintains appearance over extended periods, reducing long-term maintenance costs compared to alternative materials that may require periodic replacement.
Architectural Integration
The ALR F42 Glazing enables architectural designs where building facades transition seamlessly between fixed glazing and door openings. The door's transparent appearance creates visual continuity, making the door opening almost invisible within overall building composition when closed, whilst providing full-width access when open.
Key Specification Summary
| Performance Characteristics According to EN 13241-1 | |||
|---|---|---|---|
| Construction and quality features | ALR F42 Vitraplan |
ALR F42 Glazing |
|
| Resistance to wind load EN 12424 | Door without wicket door, class | 3 6) | 3 6) |
| Door with wicket door, LZ ≤ 4000, class | – | – | |
| Door with wicket door, LZ > 4000, class | – | – | |
| Door with wicket door, LZ ≤ 8000, class | – | – | |
| Door with wicket door, LZ > 8000, class | – | – | |
| Water tightness EN 12425 | Door without wicket door, class | 3 (70 Pa) | 3 (70 Pa) |
| Air permeability EN 12426 | Door without wicket door, class | 2 8) | 2 8) |
| Door with wicket door, class | – | – | |
| Acoustic insulation EN 717-1 | Door without wicket door Rw = . . . dB | 23 | 30 1) |
| Door with wicket door Rw = . . . dB | – | – | |
| Thermal insulation value EN 13241-1, appendix B EN 12428 |
Door without wicket door, U = W/(m2·K) 2) | 3.2 (3.4 4)) | 6.1 (6.1 4)) |
| – Optional triple glazing, U = W/(m2·K) 2) | 3.0 (2.9 4)) | – | |
| – Optional quadruple glazing, U = W/(m2·K) 2) | – | – | |
| – Optional climatic double panes (made of single-pane safety glass) U = W/(m2·K) 2) | – | 2.7 (2.6 4)) | |
| – Optional double panes (made of single-pane safety glass) U = W/(m2·K) 2) | – | 3.8 (3.8 4)) | |
| Door with wicket door, U = W/(m2·K) 2) | – | – | |
| – Optional triple glazing, U = W/(m2·K) 2) | – | – | |
| – Optional quadruple glazing, U = W/(m2·K) 2) | – | – | |
| – Section, U = W/(m2·K) | – | – | |
| Design | Self-supporting | ● | ● |
| Depth, mm | 42 | 67 | |
| Door sizes | Max. width mm, LZ | 6000 | 5500 |
| Max. height mm, RM 3) | 7500 | 4000 | |
| Material, door leaf | Steel, double-skinned, 42 mm | – | – |
| Steel, double-skinned, 67 mm | – | – | |
| Aluminium, standard profile | ● | ● | |
| Aluminium, profile with thermal break | – | – | |
| Surface, door leaf | Galvanized steel, coated RAL 9002 | – | – |
| Galvanized steel, coated RAL 9006 | – | – | |
| Galvanized steel, coated RAL to choose | – | – | |
| Anodised aluminium E6 / C0 (previously E6 / EV 1) | ● | ● | |
| Aluminium coated in RAL to choose | ○ | ○ | |
| Wicket door | – | – | |
| Side Door | Matching the door | ○ | – |
| Glazings | Type A section window | – | – |
| Type D section window | – | – | |
| Type E section windows | – | – | |
| Aluminium glazing frame | ● | ● | |
| Seals | All-round on 4 sides | ● | ● |
| Intermediate seal between the door sections | ● | ● | |
| ThermoFrame | PVC hard / soft seal | ○ | ○ |
| Locking systems | Internal latches | ● | ● |
| Outside / inside locking | – | – | |
| Anti-lift kit | For doors of up to 5 m with shaft operator | ● | ● |
| Safety equipment | Finger trap protection | ● | ● |
| Side trap guards | ● | ● | |
| Spring break safeguard for manual operation | ● | ● | |
| Safety catch for doors with shaft operator | ● | ● | |
| ● = Standard | * With glazing VG, E2 and G2 | |
| ○ = Optional | ** Top door section | |
| 1) With optional double pane (single-pane safety glass) | 4) Optionally with Thermoframe | 7) Class 2 = 0.45 kN/ m2 or 96 km/h |
| 2) For a door surface of 5000 × 5000 mm | 5) Door width up to 5500 mm | 8) Class 2 = 12 m3/m2h |
| 3) Door height above 7000 mm on request (not with door type ALR F42 Glazing) |
6) Class 3 = 0.7 kN/ m2 or 120 km/h | 9) Class 1 = 24 m3/m2h |
