Rectangular Em Dome Controlled Louvre Ventilation 600x1200mm

A vent collar unit fitted with adjustable louvres is located between the rooflight dome and the builders curb. Units are available as a 100mm high aluminium collar with white foamed PVCu insulating lining internally or a 150mm high white multi-chambered PVCu collar. The vents are fitted to two opposite sides as standard. All four sides may be fitted with vents, if higher levels of airflow are required.

For T-Curbs, T-Curb adaptors and Em-Curbs 300mm high, the vents and cowls are fitted directly in the side wall.

The fully adjustable louvre vents are operated by means of a hooked rod, available in lengths of 1.5, 2 or 3m. The louvres are protected from the elements by an external weather cowl.