Window Vents

View our extensive range including clip-fit options and smallest 5000EA on the market.

Product selector - A quick overview for you!

slotvent update

Our through-frame Slotvent range is extensive and will cater for all your needs, with a wide range of equivalent area performances and installation options that comply with current Building Regulations.

Included are slimline products suitable for the narrowest of window profiles, low profile options that are discreet when installed and vents with clip-fit options that can dramatically reduce the time of installation in manufacture or on site.

The Building Regulations ADF:2010 Means of Ventilation prescribe the requirements for both new build and refurbishment windows.

Testing

All Greenwood products are tested at third party UKAS accredited test houses to all current British and European standards:

BS EN 13141-1:
2004 Ventilation for Buildings

BS EN 1026:
2000 Air Permeability

BS EN 1027:
2000 Watertightness

BS EN ISO 717-1:
1997 Airborne Sound Insulation

Window Vent Regulations

Download the Building Regulation requirments for Window Vents for new build and refurbishment work;

ENGLAND & WALES REGULATIONS

SCOTTISH REGULATIONS

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