Specifications
Roof hatch, type RHT9090
Standard opening size: 900 x 900 mm
Weight: 44 kg
Gorter® - completely assembled with
- Thermal separated and insulated aluminium construction
- Counter balancing system for assisted opening and controlled closing
- Fully opened lid engages automatically, with release button
- Diagonal hand rail to safely enter and leave roof hatch
- Double sealing for water and weather tightness
- Cylinder lock (31 x 70 mm) with 3 keys, in- and outside operation, with 1 point lock
Performance according to CE (ETA-15/0338):
- Resistance to permanent loads (Eurocode EN 1993-1-1): 1050 kg/m²
- Sound reduction (EN-ISO140-3): 26 dB
- Watertightness (EN 12208): Class E 650
- Resistance to wind load (EN 12210): Class E 3000
- Resistance to snow loads (EN 1991-1-3): 3.97kN/m²
- Impact hard body (EN 356): Class P5A
- Impact soft body (EN 13049): Class 5
- Air permeability (EN 12207): Class 3
Standard powder coating:
Powder coated in RAL7047 (outside) and RAL9010 (inside).
Fixed vertical ladder, with or without cage
According to EN-ISO 14122-3-4
Type ladder: Gorter® - Vertical mounted ladder with ladder supports
Type cage: Gorter® - Aluminium cage with 5 tubular straps starting from 2200 – 2500 mm ladder height. Distance between cage rings 1200 – 1500 mm
Height: ........ mm
Ladder supports: pre-installed
- Distance facade – ladder: 200 mm
- Option: distance to be specified
- Option: reinforced ladder beams with foot plate and top bracket for installation without wall brackets
Measures:
Width ladder: 452 mm
Cage: Ø 700 mm
Distance between rungs: 300 mm
Downloads
Documentation:
Folder RHT747.62 KB
Technical Data Sheet - Roof Hatches RHT / RHTEI / RHTX154.82 KB
Technical Data Sheet - Reset / Calibration GT35 / GT50202.93 KB
Manuals:
User information roof hatches2.30 MB
Drawings:
 |  |  |  |  |  |
Acrobat | AutoCAD .dwg | Sketchup .skp | REVIT .rfa | REVIT .ifc | |
| RHT9090 |  |  |  |  |  |
| watch revit instruction video | |||||
Installation roof hatch on concrete upstand47.71 KB
Installation roof hatch on concrete or steel roof53.02 KB
Installation roof hatch on concrete roof46.82 KB
Installation roof hatch on concrete roof insulated53.98 KB
Certificates:
KOMO Certificate: Roof hatch RHT120.07 KB
EuroSolid Report: Thermal performance Roof hatch RHT525.05 KB
Peutz Report: Sound insulation roof hatch RHT1.14 MB
SKG Report: Aluminum roof hatch ball impact test151.21 KB
EMI Report: Snow load roof hatch423.31 KB
Gorter vertical aluminium ladders, wall ladders or cage ladders are tailor-made and have a landing/transition platform for heights of more than 10 metres. Vertical ladders above 2,200 mm are supplied with a safety cage as standard.
Suitable for use with roof hatch
Gorter vertical ladders / wall ladders can be combined with a Gorter RHT aluminium roof hatch with a minimum opening of 900 x 900 mm (RHT9090).
Transition platforms
If a vertical or cage ladder is placed against an outside wall, there should be a safe landing on the roof. This implies, among other things, that the cage and ladder uprights are extended by 1,100 mm. Gorter will be pleased to provide advice on the implementation and can create safe transition platforms where necessary.
Construction and safety
The construction of the aluminium ladders and the material used guarantee a high level of stability and long-term safe usage. Vertical / cage ladders are manufactured in accordance with EN-ISO 14122-3-4.
You can contact Gorter for further information on customised vertical ladders.
Gorter vertical, wall or cage ladders:
Made aluminium, customised
- In accordance with EN-ISO 14122-3-4
Outdoor emergency ladders with max. height of 2999mm; if taller, a cage ladder is required
- With handrails for heights > 10 metres
- Landing / platform with anti-slip grating treads
- Including wall brackets
10-year warranty on the roof hatch, 1 year on climbing devices
