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. 

Manufactured in the highest quality U.V Stabilised PVCu, the RW Simon Framevent Hi-Flow and Hi-Flow+ have been specifically designed to make it easy to achieve the requirements of Approved Document F 2021 whilst still maintaining the smooth, rounded aesthetic synonymous with the Framevent range. This model – the Framevent Hi-Flow Plus 415mm – delivers a fully-tested airflow performance of 5205mm² Equivalent Area. Also available is the Framevent Hi-Flow 415mm offering 4191mm² EA.

Key features:

• Supports compliance with Approved Document F 2021
• Smooth, rounded design
• Snap-on quick-fit end caps
• Positive open and close action
• Integral fly screen in external hood
• Suitable for PVCu, timber & aluminium windows
• Can be fitted to give upward or downward airflow
• Rod control available for full compliance with Approved Document K 2013
• Joiner pieces available

Performance:

• Acoustic Performance 27dB Open / 35dB Closed
• Airflow performance: 5205mm² EA (Equivalent Area), independently tested to BS EN 13141-1:2019
• Water tightness of 400pa
• Independently acoustically tested in accordance with BS EN 20140-10:2016, ISO 140-10:2010
• Weather performance tested in accordance with BS EN
• 1026:2016 & BS EN 1027: 2016

Dimensions:

• Vent size: 525mm (L) x 16.6mm (H) x 16.6mm (D)
• Routing slot: 230-10-230 x 13mm