TGK square roof duct

General

TGK (square)

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

Externally, TGK is constructed from galvanised sheet, and under it 50 mm mineral wool, fine-mesh fabric and an internal galvanised perforated sheet. The roof vent can be supplied with an internal cable duct. Optional bracket. Warranty is void if the bracket is not mounted in accordance with the instructions.

   

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

The roof vent 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 vent.

 

TGK is supplied as standard in 3 lengths and 6 sizes with PERFORM flashing appropriate to the roof pitch. TGR/TGK is also available with zinc flashing. Must be stated on order.


 

Damper and extractor fitting

DTV/DTH  160 200 250 315 400 450
Standard integrated AOR size 160 200 250 315 400 450
Dimensional drawing

Dimensions

TGK, diameter

Roof fan

 Roof vent

Dimensions

 Weight*

Size Size

C1

C
mm

L1
mm

 
kg

 DTV/DTH160
TGK160 - 600  Ø160 267  600  12
TGK160 - 900  Ø160 267  900  15
TGK160 - 1200  Ø160 267  1200  19
 DTV/DTH200 TGK200 - 600  Ø200 307 600  13
TGK200 - 900  Ø200 307  900  18
TGK200 - 1200  Ø200 307   1200  22
 DTV/DTH250
TGK250 - 600  Ø250 357  600  17
TGK250 - 900  Ø250 357  900  21
TGK250 - 1200  Ø250 357  1200  28
DTV/DTH315
TGK315 - 600  Ø315 422  600  21
TGK315 - 900  Ø315 422  900  28
TGK315 - 1200  Ø315 422  1200  36
DTV/DTH400 TGK400 - 600  Ø400 507  600  26
TGK400 - 900  Ø400 507  900  34
TGK400 - 1200  Ø400 507  1200  42
DTV/DTH450
TGK450 - 900  Ø500 607 900  46
TGK450 - 1200  Ø500 607  1200  58

*Weight includes AOR and 30° PERFORM flashing

Max. roof pitch for length L1:
L1 = 600 mm: max 30° flashing
L1 = 900 mm: max 45° flashing
L1 = 1200 mm: max 60° flashing
Flashing can vary by ±2.5° relative to the given roof pitch


Flashing

Max. roof pitch for L1

 If L1 = max.  roof pitch is 
 600 mm.  30° flashing
 900 mm.  45° flashing
 1200 mm.  60° flashing

 

Flashing can vary by  ±2.5°relative to the given roof pitch.

TGK dimensions, indækning

 Angle v A [mm] E [mm] G [mm] F [mm] 
 0°< v ≤ 2°  300  100 100   100
 2°< v ≤ 60°  250  250  250  300
AOR, anti-backdraught shutter

AOR anti-backdraught shutter  (standard)

As standard the roof vents are mounted with anti-backdraught shutter AOR, but can also be specially ordered without this.
When cleaning the roof vent 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.

AOR spjæld til TGK/TGR

Pressure loss graph

Pt = total pressure drop
Temperature: t = 20 °C
Density = 1.2 kg/m3

5107610, AOR Tryktabskurve


Installation

Installing TGK

TGK_mounting

Make a hole in the roof about 30 mm larger than the vent, 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.

Installation examples

 TGR, eksempel 1 An EXHAUSTO roof fan, roof vent and diffusor at the base of the roof vent 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. 
   
 TGR, eksempel 2  If there is a long distance between the roof vent 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.
   
 TGR, eksempel 3  If ventilation is required from several locations, a spiral tube can be mounted to the base of the roof vent with duct fittings or T-pieces, sound locks etc. connected to a complete ducting system to the desired locations.

 

 

Sound data

TGK - sound data

Lp = sound pressure level dB(A) in the room

Assumptions for Lp:

Sound data has been measured under the following conditions.
  The sound level is stated for an airflow equal to 80% of max. output for DTH/DTV roof fan (1400 rpm) of the same size as TGK.
  Roof fan DTH/DTV is mounted on a TGK roof vent without anti-backdraught shutter AOR. In case of integral AOR, the reading will be 3 dB(A) higher.
  No fitting at the base of TGK.
  Extraction is located in the middle of the ceiling.
  Sound absorption in room = 10 m2 sabin. 
 

Measurement point in the middle of the room

TGK 125
Hz
250
Hz
 500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
Lp
DTH
dB(A)
Lp
DTV
dB(A)
 160-600  1 22   23 22   12  5  36  33
 160-900  2  8  23  27  28  17  8  34  31
 160-1200  4  11  25  28  33  22  10  32  28
 200-600  3  5  15  25  24  13  5  44  42
 200-900  5  6  20  29  30  18  7  42  40
 200-1200  7  11  26  31  34  23  9  38  36
 250-600  4  7  13  19  12  7  4  47  48
 250-900  5  9  20  26  18  10  6  45  46
 250-1200  6  11  25  30  23  13  7  43  44
 315-600  4  5  11  15  9  4  4  58  58
 315-900  5  8  15  20  12  5  5  55  55
 315-1200  7  10  20  25  15  7  6  53  52
 400-600  2  5  9  11  6  4  3  63  65
 400-900  2  6  14  20  9  6  5  61  62
 400-1200  4  7  14  22  11  7  7  60  61
450- 900  2  3  12  17  8  4  4  -
 450-1200  2  5  14  21  10  6  5  - -

Add all about the product series TGK square roof duct

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E-mail: export@exhausto.dk

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