Gorter Roof Access Hatch RHT with Scissor Stair - Retractable Ladder - thermally broken construction
Verified by manufacturer 4 days ago
Scissor Stairs Small+
Scissor Stairs Small+
Gorter thermally broken roof hatch with Scissor Stair with 80 mm insulation, Uw ≤0.276 W/m²K for complete construction, safety rail, powder-coated. UK supply & support centre. 10-year warranty.
Application
The Gorter RHT standard roof hatch is suitable for installation on flat roofs with a maximum slope of 30° and can be used in a wide range of buildings, including offices, factories, apartment buildings, villas, shopping malls, hotels and public-sector facilities. It provides a safe and compliant solution for roof access and emergency escape, enabling routine maintenance, inspections, servicing of rooftop installations, roof terrace access and emergency egress.
Typical applications include:
- Rooftop access for HVAC systems, window cleaning installations and roof inspections
- Access to roof terraces, green roofs and amenity spaces
- nspection and maintenance access for solar panel installations
- Access to telecommunications equipment and antenna installations
- Personnel access for building envelope maintenance
Scissor stair
A roof hatch with scissor stairs is available in five combinations: three standard and two special versions. This solution is ideal when the space below needs to remain free, yet safe and easy access to the roof is required.
Bridging steps for scissor stairs
If the scissor stairs are installed in a suspended ceiling area and bridging of the ceiling void is required, two or three bridging steps can be used to bridge up to 750 mm.
If the distance to be bridged exceeds 750 mm, an RHTS roof hatch with integrated scissor stairs and a casing height of 1000 mm should be used.
Alternative roof hatches
The RHT roof hatch is also available in bespoke sizes with a single lid or double lid. For projects with specific requirements or demanding environments, Gorter also offers roof hatches with extreme insulation values, glazed roof hatches and fire-rated roof hatches.
The Gorter RHT roof hatch has been installed in a wide variety of projects worldwide. Click here for more reference projects.
Description
The new generation Gorter RHT roof hatches with scissor stair 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.
Proven insulation performance of the complete roof hatch
With the RHT roof hatch, the insulation value is calculated for the entire construction (Uw), not just the insulation material. This sets Gorter apart in the roof hatch market, where many suppliers only provide the PIR insulation value. The proven insulation performance of the complete hatch is Uw ≤ 0.276 W/(m²·K).
Why choose a Gorter roof hatch?
- CE (ETA-15/0338) and TÜV NORD certified
- Fully thermally broken curb and cover
- Safe to operate with one hand
- 10-year warranty on the roof hatch
- Fast delivery
- High-quality construction
- Stainless steel Euro cylinder lock with indoor and outdoor operation
- Burglar- and sound-proof
Option: electrical operation
Performance according to CE (ETA-15/0338):
Resistance to permanent loads (Eurocode EN 1993-1-1): 1050 kg/m²
Insulating (EN-ISO10077-2): Uw ≤ 0.276 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
Scissor stair:
Material: cast aluminium
Size steps: 350 x 140 x 26 mm, anti-skid
Distance of steps 250 mm, depending on ceiling height
Horizontal position of steps is adjustable
Hardware Scissor stair:
Hook and eye
Handrail prepared for padlock to secure retracted stairs against misuse
Stair guide control system
Standaard sizes: from 700 x 1000 mm up to 1000 x 3000 mm
Learn more about the Gorter roof hatch with scissor stairs.
General information
Color | Grey Guidance for specification option: Roof hatch, external. White Guidance for specification option: Roof hatch, internal, standard. Black Guidance for specification option: Roof hatch, internal. Silver Guidance for specification option: Scissor stair. |
Finish | Powder-coated Guidance for specification option: Roof hatch. Anodized Guidance for specification option: Scissor stair. |
Material | Aluminium Guidance for specification option: Scissor stair. Other Guidance for specification option: Roof hatch. Steel |
Shape | Rectangle Square Manufacturer guidanceHatch only. |
Length | 1000 mm 1400 mm 1500 mm Manufacturer guidanceRoof hatch, opening. |
Width | 700 mm 1000 mm Manufacturer guidanceRoof hatch, opening. |
Height | Bespoke Guidance for specification option: Varies according to ladder size. |
Warranty description | Ten year Guidance for specification option: Roof hatch. One year Guidance for specification option: Climbing device. |
Uniclass | |
CAWS | L20/60 Doors L20/630 Hatches |
SKU Code | RHT7010, RHT7014, RHT1015 |
Specification data - Roof hatches
Classification data | |
Format | External. |
Performance | |
Fire resistance | Manufacturer's standard. |
Door | |
Orientation | Horizontal. Guidance for specification option: For flat roofs, maximum slope of 30°. |
Position | Flush. |
Material | Manufacturer's standard. Guidance for specification option: Consult manufacturer for details. |
Operation | |
Mode | Manual. |
Control | N/A. |
Third-party certification | CE ETA-15/0338. Aboma certificate. TÜV NORD certified according to EN 14975:2010, with label ''Baumuster geprüft". Scissor stair with Aboma and TÜV NORD quality mark. |
Dimensions | Roof hatch: 700 x 1000 mm. Guidance for specification option: Hinge side is on long side. |
Floor-to-ceiling height | Guidance for specification option: Insert requirements, maximum 3000 mm. To be specified from top of floor to bottom of cover. |
Weight | Roof hatch: 56 kg. |
Colour | Roof hatch: RAL 7047 (external); RAL 9010 (internal). Guidance for specification option: Telegrey 4/ Pure white. |
Applied finish | Roof hatch: powder-coated. Ladder: manufacturer's standard. |
Ladder | Cast aluminium scissor stair Small+. Guidance for specification option:
|
Locking | Stainless steel Euro cylinder lock, inside and outside operation. |
Hardware | Hook and eye. Handrail prepared for padlock to secure retracted stairs against misuse. Stair guide control system. |
Insulation | Roof hatch to EN ISO 10077-2, Uw ≤0.276 W/m²K. |
Impact resistance | Roof hatch: Impact hard body to EN 356, Class P5A. Impact soft body to EN 13049, Class 5. |
Load resistance | Roof hatch: resistance to permanent loads to Eurocode EN 1993-1-1, 1050 kg/m². Guidance for specification option: Roof hatch. |
Sound reduction | Roof hatch to EN ISO 140-3, 26 dB. |
Air permeability | Roof hatch to EN 12207, Class 3. |
Watertightness | Roof hatch to EN 12208, Class E 650. |
Wind load resistance | Roof hatch to EN 12210, Class E 3000. |
Snow load | Roof hatch to EN 1991-1-3, 3.97 kN/m². |
Integral accessories | Diagonal Gorter yellow handrail. Counterbalancing system for assisted opening and controlled closing. |
Sustainability data
Contains Red List materials | No |
Country of product manufacture | Netherlands |
Manufacturing plant location | |
Material | Aluminium Guidance for specification option: Scissor stair. Other Guidance for specification option: Roof hatch. Steel |
BIM objects
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
Literature
Literature type
Gorter RHT Standard Roof Hatch – Product Flyer
Gorter RHT Standard Roof Hatch - Brochure
Gorter Scissor stairs for Roof hatches - Technical Data Sheet
Gorter Scissor stairs - Large 700 x 1200 mm – Ceiling height up to 3000 mm - Technical 2D Drawing
Gorter Scissor stairs - Large EI-60 700 x 1200 mm – Ceiling height up to 3000 mm - Technical 2D Drawing
Gorter Scissor stairs - Large electric 700 x 1200 mm – Ceiling height up to 3000 mm - Technical 2D Drawing
Gorter Scissor stairs - Large-H 700 x 1200 mm – Ceiling height up to 3500 mm - Technical 2D Drawing
Gorter Scissor stairs – Large-H EI-60 700 x 1200 mm – Ceiling height up to 3500 mm – Technical 2D Drawing
Gorter Scissor stairs - Large-H electric 700 x 1200 mm – Ceiling height up to 3500 mm – Technical 2D Drawing
Gorter Scissor stairs - Small+ 700 x 1000 mm – Ceiling height up to 3000 mm - Technical 2D Drawing
Gorter Scissor stairs Plenum - Extention of Scissor stairs - Technical Data Sheet
Gorter Scissor stairs - XL 1000 x 1300 mm – Ceiling height up to 3000 mm - Technical 2D Drawing
Gorter Scissor stairs - XL-H 1000 x 1300 mm – Ceiling height up to 3500 mm - Technical 2D Drawing
Gorter RHT7010 Roof Hatch – Technical 2D Drawing
Gorter RHT7014 Roof Hatch – Technical 2D Drawing
Gorter RHT1015 Roof Hatch – Technical 2D Drawing
Gorter RHT single lid, RHTEI fire rated and RHTX explosion vent Roof Hatches - Technical Data Sheet
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