YKK AP's YFW 400 TU thermally broken fixed windows are fully tested in accordance with AAMA standards achieving an AW rathing. These windows incorporate YKK AP's patented ThermaBond Plus® poured and debridged thermal barrier. This technology greatly improves the adhesion of a polyurethane material in the channel of an aluminum extrusion, and thus provides a desired level of energy conservation. The YFW 400 TU fixed windows were designed and engineered to be elegant with a 1 -3/16" sightline and to be efficient with superior air and water performance. The thermal U-factors for these windows range from 0.34 to 0.56 with common Low E, Air and Argon filled IGU's with spacers.
The YFW 400 TU performance can be integrated into smaller storefront and window wall punched opening applications. This contributes to LEED designs by optimizing energy performance as well as day-lighting and views to the outdoor environment. Along with the simple installation, the YFW 400 TU is the choice product for your next sustainable design.
The 4" depth design of the YFW 400 TU Fixed Window integrates easily with YKK AP's YSW 400 T Horizontal Sliding Window, YVS 400 TU and YVS 410 TU Hung Window Systems using the same stacking mullions. The YFW 400 TU meets the many design challenges required in remodeling, retrofiting, and new construction.