TGK Roof duct

TGK

Roof duct

Square roof cowl for DTH and DTV roof fan, mounted on top of the roof cowl
TGK
TGK
Roof cowl TGK (square) has been specially developed for DTH and DTV roof fans. Together the roof fan and roof cowl form an elegant architectural whole. The roof fan is mounted directly on top of the roof cowl. The base can be mounted with a diffusor or the cowl can be extended with a duct or T-pipe.

Externally, TGK is constructed from galvanised sheet, and underneath a 50-mm mineral wool, fine-mesh fabric and an internal galvanised perforated sheet.
TGK

Product advantages

  • Supplied with perform or zinc flashing
  • Available in sizes corresponding to DTH and DTV – in 3 different lengths
  • Insulated against sound and condensation

TGK is supplied as standard in 3 lengths and 6 sizes with PERFORM flashing appropriate to the roof pitch. TGK can also be supplied with zinc flashing or without flashing. Must be stated on order.

PERFORM comes as standard in black, but grey and red can be ordered at no extra cost.

References Max. roof pitch
TGK160-600

30

TGK160-900

45

TGK160-1200

60

TGK200-600

30

TGK200-900

45

TGK200-1200

60

TGK250-600

30

TGK250-900

45

TGK250-1200

60

TGK315-600

30

TGK315-900

45

TGK315-1200

60

TGK400-600

30

TGK400-900

45

TGK400-1200

60

TGK450-900

45

TGK450-1200

60

TGK
References C (mm) C1 L1 (mm)
TGK160-600

267

160

600

TGK160-900

267

160

900

TGK160-1200

267

160

1200

TGK200-600

307

200

600

TGK200-900

307

200

900

TGK200-1200

307

200

1200

TGK250-600

357

250

600

TGK250-900

357

250

900

TGK250-1200

357

250

1200

TGK315-600

422

315

600

TGK315-900

422

315

900

TGK315-1200

422

315

1200

TGK400-600

507

400

600

TGK400-900

507

400

900

TGK400-1200

507

400

1200

TGK450-900

607

500

900

TGK450-1200

607

500

1200

The roof cowl is insulated for sound and condensation. To avoid transfer of vibrations to the roof cowl, a rubber ring is mounted on the fan.

The roof cowl has been designed to take an electric cable via the integral cable duct. The installation cable is inserted in the cable duct at the bottom and drawn up by the safety switch, which is not normally an EXHAUSTO delivery. The safety switch is mounted directly on the roof cowl.

The roof duct is supplied with an AOR anti-backdraught shutter as an accessory.

When cleaning the roof cowl and/or connector duct, the anti-backdraught shutter is easily detachable without use of tools.

The anti-backdraught shutter AOR opens when the fan is in operation.

Make a hole in the roof about 30 mm larger than the cowl, and loosen overlying tiles/panels, sliding them upwards to permit insertion of flashing.

Carefully position the vent on the roof with the flashing level with the roof tiles. Fix the brackets to the vent, lifting it by about 5 mm when the brackets are subsequently fixed to the rafters. This will ensure that the whole weight rests on the brackets.

Roll out the flashing and knock it carefully into shape (with PERFORM, a rubber hammer or sandbag must be used). Replace overlying tiles/panels over the flashing.

An EXHAUSTO roof fan, roof vent and diffusor at the base of the roof cowl will provide an optimum air handling solution for the minimum of space, for example on flat or sloping roofs with a short distance to the extraction point.

If there is a long distance between the roof cowl and the extractor fitting, an extension can be formed with spiral tube or similar, with a duct fitting directly attached to the base of the roof vent.

If ventilation is required from several locations, a spiral tube can be mounted to the base of the roof cowl with duct fittings or T-pieces, sound locks etc. connected to a complete ducting system to the desired locations.

Products and accessories references

  • TGK160-600
    TGK160-600
  • TGK160-900
    TGK160-900
  • TGK160-1200
    TGK160-1200
  • TGK200-600
    TGK200-600
  • TGK200-900
    TGK200-900
  • TGK200-1200
    TGK200-1200
  • TGK250-600
    TGK250-600
  • TGK250-900
    TGK250-900
  • TGK250-1200
    TGK250-1200
  • TGK315-600
    TGK315-600
  • TGK315-900
    TGK315-900
  • TGK315-1200
    TGK315-1200
  • TGK400-600
    TGK400-600
  • TGK400-900
    TGK400-900
  • TGK400-1200
    TGK400-1200
  • TGK450-900
    TGK450-900
  • TGK450-1200
    TGK450-1200

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