Roof hatch RHT1015 and scissor stair XL

Access to lift machine rooms

Scissor stair ensures free space under the roof hatch

New generation Gorter RHT roof hatch

Fully thermally broken

Gorter RHT roof hatch with XL scissor stair for, among others, lift and machine rooms:

Scissor stair extension for plenum

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Certifications:

CE ETA-15/0338

Aboma certified according to EN-ISO 14122-3 for access to Lift Engine Rooms

TÜV NORD certified according to EN 14975:2010, with label ''Baumuster geprüft"

Roof hatch, type RHT1015
Standard opening size: 1000 x 1500 mm (Hinge side = long side)
Weight: 84 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
Fully opened lid engages automatically, with release button
Diagonal handrail in Gorter yellow on the inside of the lid provides extra grip when stepping in and out
Closure with Gorter hardware and stainless steel Euro cylinder lock, inside and outside operation

Performance according to CE (ETA-15/0338):

Resistance to permanent loads (Eurocode EN 1993-1-1): 1050 kg/m²
Insulating (EN-ISO10077-2): U_w ≤ 0.32 W/(m².K)
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

RHT powder coating:
Outside: powder coated in RAL7047
Inside: powder coated in white RAL 9010 (optional black RAL9004)

Scissor stair, type XL Gorter
Casing:

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

Ceiling height: ........ mm, standard 3000 mm
to be specified from top of floor to bottom of cover.
Option: up to 3500 mm (type XL-H Gorter).

Stair:

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

Projection while opening:

Max. 600 mm at ceiling height 3000 mm (type XL Gorter)
Max. 850 mm at ceiling height 3500 mm (type XL-H Gorter)

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

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 slope of 30°.

The Gorter combination of roof hatch and type XL scissor stair was developed in part to reach higher lift machine rooms and utility rooms. The scissor stair is supplied with an Aboma certificate for access to (lift) machine rooms in accordance with EN-ISO 14122-3. The wide stair treads (480 mm) and larger roof hatch with an opening of 1,000 x 1,500 mm simplify taking materials to upper areas/roof.

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.

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

The Gorter RHT roof hatch has a fully thermally broken curb and cover, and a proven high insulation value of U_w ≤ 0.319 W/(m².K) This minimises the chance of condensation forming and guarantees energy cost savings.

Roof hatch is CE (ETA-15/338), TÜV NORD and Aboma certified, with fully thermally broken curb and cover
Scissor stair with Aboma certificate for access to (lift) machine rooms (EN-ISO 14122-3)
Roof hatch safe operation with one hand
Safe grip all the way to the roof
10-year warranty on the roof hatch, 1 year on climbing devices
Roof hatch with optional electric control
High-quality aluminium construction of roof hatch and scissor stair
Euro cylinder lock with indoor and outdoor operation
Burglar- and sound-proof roof hatch
Fast delivery

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XL
1000 x 1300 mm

XL-H
1000 x 1300 mm

The type XL scissor stair can be used with 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