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Specifications
Roof hatch, type RHT7010
Standard opening size: 700 x 1000 mm (Hinge side = long side)
Weight: 56 kg
Product features standard roof hatch RHT:
- Delivered fully assembled
- Thermal separated and insulated construction
- Counterbalancing system for assisted opening and controlled closing
- Double sealing for water and weather tightness
- Diagonal handrail in Gorter yellow on the inside of the lid provides extra grip when stepping in and out
- Fully opened lid engages automatically, with release button
- Closure with Gorter hardware and stainless steel Euro cylinder lock, inside and outside operation
CodeMark certified for Australia & New Zealand
- Australia CM70087, New Zealand CM70088
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).
Scissor stair, type S+ Gorter
Casing:
- For structural opening size (W x L x H): 700 x 1000 x 320 mm
Ceiling height: ........ mm (max. 3000 mm)
to be specified from top of floor to bottom of cover.
Stair:
- Material: cast aluminium
- Size steps: 350 x 140 x 26 mm, anti-skid
- Distance of steps 250 mm, depending on room height
- Horizontal position of steps is adjustable
Projection while opening:
Max. 500 mm at ceiling height 3000 mm (type S+ Gorter)
Hardware:
- Hook and eye
- Handrail prepared for padlock to secure retracted stairs against misuse
- Stair guide control system
Options
Gorter® Electrical Operation of Roof Hatches
Standard Electrical operation - GT35
The Gorter GT35 electrical operation is a solution, which can be fitted on any standard Gorter RHT roof hatch. The two powerful electric motors are always fitted as a pair on both sides of the lid.
Suitable for
- Roof hatches type RHT standard
Operation and control 230Vac
The Gorter GT35 is a system with two motors and a control unit. The system comes standard with a wireless remote control and a compact control panel. The keypad connected with signal cable can be installed remote from control unit.
Dimensions:
Control unit: 265 x 105 x 40 mm
Keypad: +/- 70 x 50 x 10 mm
Length of signal/power cable motors: 2 m
Electrical installation:
The drives and the wiring must be installed by a certified installer
Operation for a hatch with double lids
Depending on the access door type, the weight of the cover and the application, we can install one or more gear rack drives. These drives are available in 24 Vdc or 230 Vac.
Operation and control 230Vac
This is the simplest system with 1 motor. It can be operated with an integrated or surface-mounted switch, not included.
Operation and control 24Vdc
Operation of one or more drives is controlled by a control box with rectifier that is connected to the electricity network.
Features
- Communication with central alarm system, possibly combined with emergency switch
- Programmable
- Operation control of other objects
- Control by automatic detectors - smoke, rain, wind, fire etc.
- Automatic sequence control of two covers that are overlapping
- Automatic stop in case of unequal load or overload
- etc.
Depending on the features we will recommend a suitable control box type.
Emergency hatches and doors:
It is of life importance that an emergency door opens after a break down of the electrical system. For those reasons a control box can be provided with a built-in emergency power pack.
Electrical installation:
The drives and the wiring must be installed by a certified installer.
Downloads
Documentation:
Roof hatch RHT brochure2.71 MB
Technical Data Sheet - Roof Hatches RHT / RHTEI / RHTX154.82 KBTechnical Data Sheet - Scissor stair116.96 KB
Technical Data Sheet - Reset / Calibration GT35 / GT50202.93 KB
Manuals:
User information roof hatches2.30 MB
User information scissor stairs3.30 MB
Drawings:
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Watch the Revit instruction video
Installation roof hatch on concrete upstand42.61 KB
Installation roof hatch on concrete or steel roof45.29 KB
Installation roof hatch on concrete roof41.13 KB
Installation roof hatch on concrete roof insulated53.77 KB
Certificates:
Codemark® Certificate of Conformity479.79 KB
Declaration of performance CE roof hatch RHT44.71 KB
KOMO Certificate: Roof hatch RHT120.07 KB
TÜV NORD Certificate: Roof hatch with ladder, scissor stairs and fixed stairs413.16 KB
TÜV NORD Certificate: Scissor stairs240.38 KB
EuroSolid Report: Thermal performance Roof hatch RHT525.05 KB
Peutz Report: Sound insulation roof hatch RHT1.14 MB
Aboma Certificate: Roof hatch with scissor stairs70.66 KB
Quote
Gorter roof hatches with scissor stairs provide practical and safe access to flat roofs for maintenance work or other purposes. The roof hatch can be installed on flat roofs with a maximum pitch of 30°.
Ideal for small spaces
The Gorter combination of roof hatch and S+ scissor stair is ideal for use in small spaces with a maximum ceiling height of 3,000 mm. The scissor stair folds out to 500 mm, while the roof hatch has a compact clearance of 700 x 1000 mm.
Scissor stair ensures free space under the roof hatch
Roof hatches combined with a scissor stair are ideal for applications where occasional but also frequent access to the roof is required. When the scissor stair is folded, you always have free space under the hatch.
New generation Gorter RHT roof hatch
The new generation RHT roof hatches feature an extremely strong and patented construction. Thanks to several modifications, the roof hatch is even more resistant against unexpected extreme loads, both during construction and in general use.
Improved features and functionalities of the indestructible and sustainable RHT roof hatch:
- Made and Designed in Holland
- New and improved, patented indestructible construction
- Trusted, with CE(ETA) certification
- Now available directly from stock in sizes up to 1000 x 3000 mm
- Fully standardised to metric dimensioning
Fully thermally broken
The Gorter RHT roof hatch has a fully thermally broken curb and cover, and a proven high insulation value. This minimises the chance of condensation forming and guarantees energy cost savings.
Gorter RHT roof hatch with S+ scissor stair:
- Roof hatch with fully thermally broken curb and cover
- Roof hatch safe operation with one hand
- Safe grip all the way to the roof
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10-year warranty on the roof hatch, 1 year on climbing devices
- Optional electric control of roof hatch
- High-quality aluminium construction of hatch and scissor stair
- Euro cylinder lock with indoor and outdoor operation
- Burglar- and sound-proof roof hatch
- Fast delivery
The S+ scissor stair is not suitable for use as an extension of scissor stair to bridge a plenum (= space between suspended ceiling and roof).
Read more about the advantages of Gorter roof hatches here
ETA and maximum performance
Thermally insulated construction
Complete with ladder or stairs
