Ventilation building regulations have recently changed in England and Wales.  Although this vent supports compliance, we would urge you to read our handy guide before you purchase which summarises the new requirements. 

The Greenwood SF Vent is a discreet through-frame Slotvent that provides background ventilation in line with the requirements of the current Building Regulations ADF 2010.  These slot vents are widely specified in social sector window replacement programmes to provide effective ventilation, while reducing mould and condensation. With a choice of 3 sizes, 3 control options and a wide range of colours, there’s an S vent variant to suit every need.

Key features:

• Available in 3 sizes: 
  3000S 305mm (L) x 22mm (H) x 23mm (D)
  4000S 400mm (L) x 22mm (H) x 23mm (D)
  6000S 550mm (L) x 22mm (H) x 23mm (D)
• Offers up to 4200mm² equivalent area (6000S vent)
• Front mounted operation or pull cord operation
• For bottom mounted operation please see the SB version
• Widely specified within the social sector
• Optional sleeve available to help improve window integrity
• Provides background ventilation in line with current Building Regulations ADF 2010
  

Performance:

• Optimised airflow: 2500mm² EA
• Air leakage: 1 m³/h 0.27 L/s
• Air permeability - meets BS EN 1026: 2000
• Water tightness - meets BS EN 1027: 2000
• 35dB sound reduction, Airborne Sound Insulation: - BS EN ISO 717-1: 199

Dimensions:

• This vent 2500mm² EA is 305mm (L) x 22mm (H) x 23mm (D)
• Routing slot: internal 243 x 12.5mm, external 265 x 16mm