NATURAL VENTILATION SYSTEM The Complete Solution - Gilberts ...

Type 2 - Exhaust Turret Terminal withMounting SleeveThe Type 2 exhaust turret provides a means for rooftopexhaust of natural ventilation air and includes a purposefactory built mounting sleeve. The louvre features the exactsame specification as the Type 1 detailed on page 22.For Type 2 however the additional duct sleeve provides asafe effective means to fit the louvre to the roof structureand also allows for convenient ducting off below the rooflevel. The sleeve is available in both an insulated and noninsulated format. The insulated version is standard with thesleeve design incorporating a phenolic thermal foam barrierwhich prevents transfer of heat/cooling energy from insideto outside. This thermal barrier has a U value of 1.6w/m 2˚C.Standard fixing is via a kerb mounting flange and birdguard screens are also fitted as standard to the rear.Insect screens are available on requestType 3 - Exhaust Terminal with Mounting Sleeveand DamperThe Type 3 exhaust turret provides a means for rooftopexhaust of natural ventilation air and includes a purposefactory built mounting sleeve and volume control damper.The louvre enjoys the exact same specification as theType 2 Terminal.Type 3 however is a fully self contained terminal that doesnot rely on further ducting or separate volume control.It includes a motorised volume control damper at the basewhich allows the unit to fully open, close or modulateas demand requires. The damper is mounted on the sleeveoutlet and can be linked in to the natural ventilation buildingmanagement system. The damper (see full details on page16) is our patented fully insulated design which againprovides a full thermal barrier with a U value of 1.6w/m 2˚C.Standard fixing is via kerb mounting flange and bird guardsare also fitted as standard with insect screens optionallyavailable.Curb Type - B423