Fortis Series


Ph: 877/747-8735

Designed for increased structural integrity and decreased air and water infiltration, Fortis Series windows feature a main frame sill with three sealing locations, including a structural sill interlock that nests into a receptor on the bottom sash. This, coupled with a frame sill dam that is mortised behind the jambs, provides for an R-50 DP rating and an air infiltration rating of 0.05 cfm/ft2, the manufacturer reports. The windows also come standard with VyCore insulating foam in both the frame and sash members as well as ThermaCore composite reinforcement in the meeting rails. The standard dual-pane low-E/argon double-hung unit achieves a 0.26 U-value, with U-values as low as 0.16 in a triple-pane configuration. Another option is an R-5 dual pane insulating glass unit that does not employ hard coat low-E on surface number 4, the manufacturer points out.  From Vytex Windows, the new line uses a state-of-the-art inverted constant force balance system said to provide up to a 50 percent reduction in operating force for smoother operation than typical balance systems. The main frame exterior offers a soft, classic architectural detail and the narrow profile interior offers a larger glass viewing area. The windows are also available with VyWood paintable/stainable laminate interiors as well as more than 25 VyCoat exterior colors.