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Mark 2

Permanent Vent

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STANDARD ROOF OPENING SIZES AVAILABLE
450 x 450 750 x 750 900 x 900 1050 x 1050 1200 x 1200 1350 x 1350
600 x 600 750 x 900 900 x 1200 1050 x 1500 1200 x 1500 1500 x 1500
600 x 900 750 x 1050 900 x 1500 1050 x 1650 1200 x 1800 1800 x 1800
600 x 1200

 

900 x 1800

 

1200 x 2400

 

 

 

900 x 2100

 

 

 

Non-standard sizes in metal kerbs also available on request