Kawneer UK Ltd is one of the UK's leading manufacturers and suppliers of architectural aluminium systems

Ventilation Characteristics of Different Window Designs

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Window Type Airflow Ventilation control Weather protection Night ventilation Comments  
AA®3110 Horizontal Sliding Window
AA®3110HW Horizontal Sliding Window
Good Medium Very good Medium No obstruction of internal blinds or external paths – can be draughty
AA®603TE Tilturn Window Good Good Good Medium Control is complex, can reflect noise into the room and turn function can be difficult with blinds – good at providing draught free winter ventilation
(Internal view)
AA®542 Pivot Window Very good Medium Good Good Can obstruct blinds and prevent glare control for VDU use and reflect noise into the room
AA®603TE Tilturn Window
(Bottom hung open in)
Medium Good Good Very good May obstruct blinds. Can provide good control of external noise from ground level
AA®541 Casement Window
GT70 Slimline Renovation Window
(Top hung outward opening)
Good - but less
so if restricted opening
Medium Very good Good Can reflect noise from below into the room. Can pose a hazard if opening over a pathway or communal/public area
AA®541 Casement Window
GT70 Slimline Renovation Window
(Side hung casement)
Good Medium Medium Poor Poor security when open and rain can enter. Can pose a hazard if opening over a path or communal/public area
AA®3610 Vertical Sliding Window
AA®3610LS Vertical Sliding Window
Very good Good Very good Medium No obstruction of internal blinds or external paths


Adopted from Building Bulletin 101 Ventilation of School Buildings Version 1.4 2006
For a more indepth guide go to www.teachernet.gov.uk/iaq

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