The 450-T was designed to reduce metal where possible, without compromising strength. The best example is the minimal approach in the exterior edge of the perimeter frame and the limited space around a hinged screen.
Shadow Line & Fixed Windows:
An added benefit to the ‘cube’ is a natural shadow line that traces the interior and exterior frame/vent junction. A petite sightline fixed window was designed to accompany the operable windows, which maintain the shadow line through the visual sweep of the elevation.
Less Frame = More Glass:
The Series 450-T offers even more glass than the existing slender Series 250-T. This was achieved with a deeper frame at 3” and the effective location of extrusion supports.
No Exposed Weep Slots:
Special attention was placed on locating hiding weep slots. The Series 450-T was designed to use the inherent shadow line as a full width linear drain, which avoids unsightly cuts, or weep covers.