Combination: roof hatch type RHT1015 and scissor stair type XL

Specification

TÜV certified according to EN 14975.

Aboma certified according to EN-ISO 14122 for access to Lift Engine Rooms

Roof hatch, type RHT1015
Standard opening size: 1000 x 1500 mm
Weight: 72 kg
Gorter® - completely assembled with:

Thermal separated and insulated aluminium construction
Counterbalancing system for assisted opening and controlled closing
Double sealing for water and weather tightness
Fully opened lid engages automatically, with release button
Diagonal hand rail to safely enter and leave roof hatch
Three point cylinder lock (31 x 60 mm) with 3 keys, in and outside operation

Performance:

Insulation value (EN-ISO10077-1/2): Rc = 3,2 (m². K) W; U = 0,31 W/(m².K)
Sound reduction (EN-ISO140-3): 27 dB
Wind and water tightness (EN1027/EN1873): 650 Pa
Construction strength (EN1026/EN1027): ± 3000 Pa
Air tightness (EN 1026): 0,5 m³/hm1
Snow load EN 1991-1/5): 200 kg/m²

Standard powder coating:

RAL 7047 (outside) and RAL 9010 (inside).

Scissor stair, type XL
Casing:

For structural opening size (W x L x H) 1000 x 1300 x 250 mm
With sealing all around

Stair:

Material: cast aluminium
Size steps: 480 x 140 x 26 mm, anti-skid
Distance between steps: ca. 250 mm depending on room height
Steps can be levelled horizontally

Room height: ........ mm, standard 3000 mm
to be specified from top of floor to bottom of cover.
Option: up to 3500 mm (type XL-H).
Projection while opening:
600 mm (3000 mm room height)
850 mm (3200 mm room height)
Hardware:

Hook and eye
Stair guide control system
2 x Handrail, prepared for padlock, to secure retracted stairs

Extension of scissor stair in plenum (option):
The stair can de extended to bridge the distance between ceiling and roof hatch in cases where it is mounted in a suspended ceiling/plenum

Options

Gorter® - Electrical Operation of Roof Hatches and Floor Doors

electrical_operation Depending on door type, cover weight and other requirements we can install one or more rack-and-pinion drives. These drives are available in 24 Vdc or 230 Vac
Operation and control 230Vac
This system is controlled with a surface mounted or built-in switch. Operation of two drives through one switch is possible.
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
emergency switch
certified for smoke vent system / fire resisting system
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.
If the emergency situation is very critical it advisable to apply doors that can be manually operated after a total break down of electrical network system and the emergency power pack.
Electrical installation:
Roof Hatches and Floor Doors will be supplied with drives installed together with required options as control box, switches, detectors, installation drawings and electrical diagrams. Electrical installation should be carried out by an electrical contractor.

Specification Gorter® Safety Railing

safety_railing Partition and marking of safe area on the roof
Components:

Rail post, straight, with base plate, net height ca. 1000 mm
Rail post, angle, with base plate, net height ca. 1000 mm
Hand rail
Knee rail

Material:
Aluminium
Supply:
In components
Installation:
Roof surface mounted
Mounted on concrete slabs (supplied by others)

Extension Scissor Stairs - Attic Ladder - Type XL

Extension of types Large, EI-60 and XL

Safety Approval Report(EN-ISO 14122-3) available

Height: ........mm
to be specified from ceiling to roof hatch flange or roof deck.
Stairs:
Material: aluminium
Steps are anti-skid
Size steps: 360 x 140 x 26 mm (types Large and EI-60)
Size steps: 480 x 140 x 26 mm (type XL)
Steps can be horizontally adjusted

Hardware:
Brackets

More information? Please click Products > Ladders and stairs > Extension of scissor stairs - attic ladder