Double bank extruded aluminium curved blade louvre pitched at 50mm. The double pass blade design results in an improvement in the weathering performance
Brochure for QEF 50 Chevron horizontal at QEF 50 Chevron Louvre
Data Sheet for QEF 50 Chevron Louvre QEF-50 Chevron Blade Data Sheet Rev A
High Performance double pass extruded aluminium curved blade louvre pitched at 50mm. Designed with Irish climatic conditions in mind, to minimise rain penetration whilst maintaining a good airflow.
Brochure for QEF 50 HP Louvre QEF 50 HP Louvre
Data Sheet for QEF 50 HP Louvre QEF- 50 High Performance Blade Data Sheet – Rev B
Data Sheet for QEF 50HP Profile (dummy) Louvre QEF-50 HP Profile Blade Data Sheet Rev A
QEF High Performance blade profile set an increase pitch of 75mm
Data Sheet for QEF 75 HP louvre QEF-75 High Proformance Blade Data Sheet Rev B