FB systems have distinct profile edges, similar to the Quadrat system. The FB version is distinguished by its flushed sash which visually creates a unified surface. The special shape of the aluminum sash, which shifts the window pane 5/8” further forward as in more conventional designs, allows for the use of broader glazing with a thinner wood cross-section. Quadrat FB lacks a visible slant and there is a right angle on the surface of its profiles. Much like other systems, Quadrat FB stands out with high functionality and excellent utility properties.
Eco Windows USA provides top quality window and door solutions in Brass, Steel, Aluminum, Wood and PVC. With a capacity of producing over 5000 windows per day our systems are highly customizable, allowing for almost unlimited possibilities to arrange elevations and building interiors for both residential and commercial use. Our brand of window and door carpentry is produced by combining precisely selected materials, premium German hardware, latest technologies and long-term experience in production. We provide CAD design support as well as complete installation services.