Treatment of aluminum which protects the metal against pitting and includes a permanent bronze color to the section

Locking device used on ventilators at traffic-flow level 



Ventilator sections hinged at one of the sides. Handle is at the side opposite the hinge. 

Treatment of aluminum which protects the metal against pitting while retaining the natural color



Windows contained in the wall of a church rising above the roofs of the flanking aisles.

Window area framed by an arc formed by the internal curve of an arch

Ventilator which protrudes wholly in one direction, either to the interior or to the exterior. 



Unit capable of receiving one lite of glazing material (3000 Series) 

Projected ventilator with glazing material above and below the unit. 

Projected ventilator with glazing material to either side of the unit. 



Dimension of the frame required. Always less than the rough or masonry opening. 

Two lites of glazing material installed independently. 



Usually refers to vertically operating window 

A non-operating or stationary section. 

Section, usually wood or metal, used to hold the glazing material in the frame.

A pointed arch top.

Upper most horizontal member of the frame. In a Gothic or Roman style, the curved member above the spring line. 

Section extending beyond the main structure of the frame. Inserted in a masonry slot or in the air space between walls, usually during construction

Electrostatically applied and baked on enamel finishes 

Metal glazing bead which mates or locks into frame to secure the glazing materials. No other fasteners such as screws are usually required. 

Locking device used on ventilators requiring pole operation. 



The aluminum extrusion as separated by a polyurethane barrier which helps reduce condensation and makes the window frame more energy efficient



Intricate glass design or frame work in the upper portion of the window. 

Window area above an entrance. 

The combination of insulated glass and leaded glass separated by an air space within a thermally broken frame (3250 and 6000 series.)

AWNING Ventilator which protrudes outward in an open position. Handle is at the bottom

Unit capable of receiving two independent lites of glazing material (2000 Series) 

Ventilator which protrudes inward in an open position

Projected ventilator with glazing material above and below the unit.