QUADRAT FB systems feature distinct profile edges similar to the standard Quadrat system. The FB version is distinguished by its flush sash design, which visually creates a unified, seamless surface appearance. The special shape of the aluminum sash shifts the window pane 5⁄8″ (15 mm) further forward compared to conventional designs, allowing for the use of broader glazing with a thinner wood cross-section. This innovative design maximizes glass area while maintaining structural integrity.
QUADRAT FB lacks a visible slant and features crisp right angles on the surface of its profiles, creating clean, modern lines. Like other systems in the range, QUADRAT FB delivers exceptional functionality and excellent utility properties, making it suitable for windows, doors, facade elements, and winter gardens.
Key Features:
Welded corner connection with “invisible weld” technology for seamless surfaces
Mechanical corner connection using fasteners with clean cut edges
Wood section thickness: 2 11⁄16″ – 3 5⁄8″ (68-92 mm)
Glazing thickness: 15⁄16″ – 2 1⁄2″ (24-64 mm)
Optional sash and frame profile bending for custom shapes
Design & Functionality:
System corners joined at 45° with precision manufacturing
“Invisible weld” technology ensures smooth, uniform surfaces
Easy and quick installation in production conditions
Compatible with Classic and Soft Line aluminum window sills
Option for mosquito net system integration
Choice between integrated balustrade or independent balustrade solutions
Outside glazing solution using aluminum strips with system gaskets
Advanced flush design creates unified surface appearance
Technical Specifications:
Wood section thickness: 2 11⁄16″ – 3 5⁄8″ (68-92 mm)
Glass packet thickness: 15⁄16″ – 2 1⁄2″ (24-64 mm)
Thermal insulation Uw: from 0.76 W/m²K (0.134 BTU/hr·ft²·°F)
Water tightness: class E1200/9A
Wind load resistance: class C3/B3
Air permeability: class 4
Performance by Wood Species and Frame Depth:
Uw values [W/(m²K)] for a reference window (7′ 2″ x 4′ 10″ / 2.18 x 1.48 m):
With double glazing (4/16/4):
68mm depth: Pine 1.295, Meranti 1.271, Spruce 1.246
92mm depth: Pine 1.239, Meranti 1.219, Spruce 1.196
With triple glazing (4/16/4/16/4), Ug=0.5:
68mm depth: Pine 0.863, Meranti 0.840, Spruce 0.816
92mm depth: Pine 0.801, Meranti 0.780, Spruce 0.761
270 Main Ave
Norwalk, CT, 06851
9:00 AM – 5:00 PM
Monday-Friday.
Saturday by appointment.
Phone:
(347) 537-5707
(203) 636-0011
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