Sill construction provides for positive weepage of moisture to the exterior. Known as a “Stacking/Can System,” the YCN 40 system offers the installer many labor saving advantages.

YCN 40 accommodates our hinged mullion, accepts 1/4″ and 1″ glazing, and is available for interior or exterior glazing.

Product Data


Non Thermal


Construction Use: New / Retrofit

Sightline: 2″

Mullion Depth: 4-3/8″

Framing Installation Method: Continuous Head and Sill

Glazing Installation: Outside / Inside

Glass Type: Monolithic / Insulating

Glass Configuration: Front