Thermally broken aluminium glazed-in flap ventilator suitable for PVC-U, timber or aluminium windows. The inner profile is punched and forms an insect mesh. Perfect wind and water tightness thanks to patented twin shutter design of the co-extruded flap.
This vent is available with a surface mounted upward air deflector (A) or with an internal water deflector (B).

The TwinAir Plus is available in 3 versions:

• Controllable: a graded operating mechanism provides control of air
• Tricklevent: in accordance with the building regulations, the airflow can be adjusted manually but the ventilator can not be closed completely
• Permanent: in accordance with the building regulations for fuel burning appliances any form of control mechanism has been prohibited.

Performance	TwinAir
Airflow at 1 Pa in dm3/s.m (cfr EN 13141-1)	12,7
Airflow at 2 Pa in m3/h.m (cfr EN 13141-1)	65
Equivalent Area in mm2/m (cfr EN 13141-1)	16129
Free Air performance in mm2	17000
Air sound insulation Rq,A in dB(A)	-2
Sound absorption Dne,A in dB(A)	27
Heat conduction coefficient	U = 3,69 W/m2.K
Wind and watertightness	Up to 500 Pa
Rigidity and strength	Highest class
Dimensions	Upper glazing	Transom glazing
Glass reduction	68 mm	/
Built-in height	79 mm	108 mm
Glazing thickness	20, 24 and 28 mm	20 mm
Rebate size	17 mm	17 mm
Finishes
Control	Lever, rod or curved rod
Endcaps	Black or white
Finishes	F1 silver anodised All RAL colours (also twincolour)