Roof hatch RHT in standard sizes

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Roof hatch type RHT in standard sizes: single lid

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Specifications

Certifications:

CE ETA-15/0338

Opening (mm) - Weight:

  • RHT7090: 700 x 900 mm / 38 kg
  • RHT9090: 900 x 900 mm / 44 kg
  • RHT7014: 700 x 1400 mm / 52 kg
  • RHT1010: 1000 x 1000 mm / 50 kg
  • RHT1015: 1000 x 1500 mm / 65 kg
  • RHT1020: 1000 x 2000 mm / 82 kg
  • RHT9024: 900 x 2400 mm / 89 kg

Hinge side = long side

 

Gorter® - completely assembled with:

  • Thermal separated and insulated aluminium construction
  • Counterbalancing system for assisted opening and controlled closing
  • Double wind and weather tight sealing between lid and curb
  • Lid that engages automatically in open position, with one hand release
  • Eurocylinder (31 x 70 mm) lock with 3 keys, inside and outside operation.                                                                    
  • Opening > 1501 mm with 3-point lock.
  • Diagonal handrail on inside lid to safely enter and leave roof hatch

 

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

  • Resistance to permanent loads (Eurocode EN 1993-1-1): 1050 kg/m²

  • Insulating (EN-ISO10077-2): Uw ≤ 0.32 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

 

Standard powder coating:

Powder coated in RAL7047 (outside) and RAL9010 (inside).

Options

Gorter® Electrical Operation of Roof Hatches and Floor Doors

Gorter® Electrical Operation of Roof Hatches and Floor Doors

Standard Electrical operation - GT35

electrical operation gt35The Gorter GT35 electrical operation is a solution, which can be fitted on any standard Gorter RHT roof hatch or floor door of the type WA, WAPT and OP. The two powerful electric motors are always fitted as a pair on both sides of the lid. The motors are pre-fitted from the factory or can be fitted afterwards on any standard RHT roof hatch from model year 2012 and later.

 

Suitable for

  • Roof hatches type RHT standard
  • Hinged Floor doors type WA (flush), WAPT and OP

 

Operation and control 230Vac

The Gorter GT35 is a system with two motors and a control unit. The system comes standard with a wireless remote control and a compact control panel. The keypad connected with signal cable can be installed remote from control unit.

Dimensions:

Control unit: 265 x 105 x 40 mm

Keypad: +/- 70 x 50 x 10 mm

Length of signal/power cable motors: 2 m

Electrical installation:

The drives and the wiring must be installed by a certified installer

 

Operation for a hatch with double lids

electrical_operation

Depending on the access door type, the weight of the cover and the application, we can install one or more gear rack drives. These drives are available in 24 Vdc or 230 Vac.
Operation and control 230Vac

This is the simplest system with 1 motor. It can be operated with an integrated or surface-mounted switch, not included.
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, possibly combined with emergency switch
  • 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.
Electrical installation:

The drives and the wiring must be installed by a certified installer.

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Gorter roof hatches can be used as escape hatches, but in most situations, they provide practical and safe access to flat roofs for maintenance work or to a roof terrace. Roof hatches can be installed on flat roofs with a maximum slope of 30°.

 

Fully thermally broken

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

 

Gorter RHT 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
  • Optional electric control
  • Fast delivery
  • High-quality aluminium construction, 3x lighter than steel, strong and corrosion-free
  • Euro cylinder lock with indoor and outdoor operation
  • Burglar- and sound-proof 

Read more about the advantages of Gorter roof hatches here

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