YKK AP's YES 40 FI is a center set, flush glazed storefront system developed for 1" insulating glass and other types of infill panels of varying thicknesses. This architectural commercial storefront system features a 2" face and a 4" mullion depth, and it will accommodate YKK AP's hinged mullion, as well as our flexible mullion. These mullions allow for more creative freedom where curves and angles become a functional part of the design.
The YES 40 FI can be outside glazed, and it can be assembled using screw spline or shear black assembly. It comes with a gasket with a stretch-resistant cord, and it features integral entrance door frames as well as enhanced water infiltration resistance.