THAV/THFV roof terminals

General

EXHAUSTO roof terminal THAV is for air exhausts and THFV is for outdoor air intakes.

The roof terminals are for use where an architecturally attractive and technically sound roof termination is required for duct systems. The roof terminals are easy to mount on different roofing constructions.

The low-noise design makes them particularly suitable for built-up areas with high environmental requirements.

THAV's vertical air exhaust prevents polluted exhaust air from being deposited over surrounding areas or soiling the roof surface.

Technical description

THAV/THFV technical data

 

Materials
External scroll Hot-galvanised sheet, black lacquer RAL7021
Available in other RAL colours on extra payment
Insulation 50 mm mineral wool
Internal scroll Perforated sheet (sound damping)
Support fixture A mounting fixture for fixing under flashing is available for extra payment
Warranty is void If the support fixture is not used in accordance with the instructions.

   

Flashing
Without flashing Where roof terminals are supplied unpainted
PERFORM Standard black PERFORM
Grey and red are available as an accessories.
Zinc Used for mounting under roofing felt

PERFORM tolerates temperatures from -40 °C to 90 °C and is resistant to UV radiation.

 

THFV

THFV roof terminals are for outdoor air intakes with a round inlet, giving minimal pressure drop. THFV has an integrated bird net.

THFV

THAV

The THAV roof terminal is for vertical exhaust and has an integrated damper. A bird net is mounted on top to prevent unwanted objects entering the duct system.

THAV THAV

 

 


Dimensional drawing

THAV/THFV

Dimensions E, F and G apply only to PERFORM flashing.
With zinc, the flashing is always 100 mm.

PERFORM flashing can cater for +/- 2.5° relative to the given roof pitch.

THAV THFV målskitse

THAV/THFV
size
Dimensions  Weight*
kg
Max.
roof pitch
V
C1
Ø mm
C
Ø mm
L
mm
L1
mm
 160-600 Ø160 Ø270 600 760 16 30°
160-900 Ø160 Ø270 900 1060 18 45°
160-1200 Ø160 Ø270 1200 1360 21 60°
200-600 Ø200 Ø305 600 785 12 30°
200-900 Ø200 Ø305 900 1085 14 45°
200-1200 Ø200 Ø305 1200 1385 17 60°
250-600 Ø250 Ø375 600 835 14 30°
250-900 Ø250 Ø375 900 1135 19 45°
250-1200 Ø250 Ø375 1200 1435 22 60°
315-600 Ø315 Ø440 600 905 19 30°
315-900 Ø315 Ø440 900 1205 24 45°
315-1200 Ø315 Ø440 1200 1505 29 60°
400-600 dia. 400 Ø510 600 1015 25 30°
400-900 dia. 400 Ø510 900 1315 30 45°
400-1200 dia. 400 Ø510 1200 1615 35 60°
500-900 dia. 500 Ø610 900 1440 35 40°
500-1200 dia. 500 Ø610 1200 1740 42 50°
630-900 Ø630 Ø738 900 1550 56 35°
630-1200 Ø630 Ø738 1200 1850 61 45°

* Weight incl. 30° PERFORM flashing.

Angle V A E F G
0° < V ≤ 2° 300 100 100 100
2° < V ≤ 60° 250 250 300 250
Sound data

THAV / THFV

 

THAV / THFV
size
Insertion loss dB
 125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
160-600 1 6 22 23 22 12 5
160-900 2 8 23 27 28 17 8
160-1200 4 11 25 28 33 22 10
200-600 3 5 15 25 24 13 5
200-900 5 6 20 29 30 18 7
200-1200 7 11 26 31 34 23 9
250-600 4 7 13 19 12 7 4
250-900 5 9 20 26 18 10 6
250-1200 6 11 25 30 23 13 7
315-600 4 5 11 15 9 4 4
315-900 5 8 15 20 12 5 5
315-1200 7 10 20 25 15 7 6
400-600 2 5 9 11 6 4 3
400-900 2 6 14 20 9 6 5
400-1200 4 7 14 22 11 7 7
500-900 2 3 12 17 8 4 4
500-1200 2 5 14 21 10 6 5
630-900 1 4 12 10 7 5 3
630-1200 1 5 16 12 8 6 3
Pressure drop

THAV/THFV

THAV for exhaust air
 

THAV tryktab

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

 

THFV for outdoor air intake
 

THFV tryktab

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

THAV throw

The THAV roof terminal has an upward airflow with the throw indicated on the diagram. The throw is the distance from the top of the roof terminal to the point on the centre line where the speed has fallen to 2.0 m/s.

The vertical exhaust also directs noise upwards, thus limiting the sound level in surrounding areas.

THAV kastelængde

Flue gas resistance

THAV/THFV flue gas resistance

If the duct system has smoke ventilation, e.g. in apartment buildings, flue gas resistance in the duct system must be calculated from the following diagram. The THFV roof terminal has a fixed flue gas resistance. 

THAV has an integral stop plate for insertion for smoke ventilation.

 

Add all about the product series THAV/THFV roof terminals

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Export Requests:
EXHAUSTO Export
Odensevej 76
DK 5550 Langeskov

Tel +45 6566 1236
E-mail: export@exhausto.dk
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