Glenstorms (A Unit Of G.S Enterprises)

Gravity Intake Back Draft Damper Combined Louver type of louver has a feature of stationary front louver that provides added weather protection and secondary gravity intake backdraft damper.

Application and Design: Features a stationary front louver that provides added weather protection and secondary gravity intake backdraft damper. Design incorporates extruded aluminium 4.5 inch deep drainable head member with both side flange, primary stationary horizontal louvers to channel water to the jambs which guides the water through vertical down-spouts for escape at the sill, and secondary gravity louver blades. These louvers are ideal for situation where airflow is required in one direction with protection against water penetration. 

Low Leak Adjustable Damper Combined Louver type of louver has a feature of front stationary louver thats provides added weather protection and secondary operable damper.

Application and Design: Features a stationary front louver that provides added weather protection and secondary operable damper. Design incorporates extruded aluminium 4.5 inch deep drainable head member with both side flange, primary stationary horizontal louvers to channel water to the jambs which guide the water through vertical down-spouts for escape at the sill, and secondary gear driven blades with EPDM blade edge seal. These louvers are ideal for situations where airflow is not required at all times and blade closure is desired to restrict weather infiltration. Also available with electric actuator for automatic control.