Gorter® Flat Roof Access Hatch RHT with Scissor Stairs

Certifications:
CE ETA-15/0338
Aboma certificate
TÜV NORD certified according to EN 14975:2010, with label ''Baumuster geprüft"
Sentinel Holding Instituut (SHI) – Tested for harmful substances and suitable for QNG and sustainable building certifications such as DGNB, LEED, BREEAM and BNB.

Roof hatch, type RHT7010
Standard opening size: 700 x 1000 mm (Hinge side = long side)
Weight: 56 kg

Roof hatch, type RHT7014 
Standard opening size: 700 x 1400 mm (Hinge side = long side)
Weight: 68 kg

Roof hatch, type RHT1015
Standard opening size: 1000 x 1500 mm (Hinge side = long side)
Weight: 84 kg

Gorter® - completely assembled with:

• Thermal separated and insulated construction
• Counter balancing system for assisted opening and controlled closing
• Diagonal hand rail to safely enter and leave roof hatch
• Double sealing for water and weather tightness
• Fully opened lid engages automatically, with release button
• Stainless steel Eurocylinder lock, in- 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 ≤ 0.276 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

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

Scissor stairs

Casing:
Type Small+: For structural opening size (W x L x H): 700 x 1000 x 320 mm
Type Large: For structural opening size (W x L x H): 700 x 1200 x 250 mm
Type XL: For structural opening size (W x L x H) 1000 x 1300 x 250 mm

Stair:

• Material: cast aluminium
• Size steps: 350 x 140 x 26 mm, anti-skid
• Step distance: ca. 250 mm, depending on ceiling height
• Horizontal position of steps is adjustable

Projection while opening:
Max. 500 mm at ceiling height 3000 mm (type Small+)
Max. 700 mm at ceiling height 3000 mm (type Large)
Max. 950 mm at ceiling height 3500 mm (type Large-H)

Hardware:

• Hook and eye
• Handrail prepared for padlock to secure retracted stairs
• Stair guide control system

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