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.

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.