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Series 4500 SSG Window Wall Unit Glaze System

In today’s challenging construction climate, speed and labor savings are of the essence. The 4500 SSG Unit-Glazed Window Wall offers both, delivering superior value. Because it’s a unitized system, glazing is done in an efficient shop environment, reducing the amount of field labor required and accelerating the installation process so you can close the envelope faster.

Key Features:

  • Reduces installation time by up to 35 percent
  • Reduces field labor costs by as much as 25 percent
  • Optional slab edge covers produce curtain wall visuals
  • Shop assembly improves overall quality
  • 1" (25.4 mm) insulating glass, 2-1/4" (57.2 mm) face trim

Series 4500 SSG


Series BG525 & BG600 BG Systems

The BG Systems are ideal for low and mid rise structural silicone glazed ribbon windows. These systems were designed for three types of configuration; two-sided structural silicone support, captured glazing, or a combination of these two configurations. Designed for stacking installation, these systems may be glazed from the inside or outside. Two-tone colors can be achieved by specifying different finishes for the exterior face covers and interior mullions.

Key Features:

  • 2-1/4" (57.2 mm) Face dimension
  • 1" (25.4 mm) Glazing
  • Low to mid rise applications
  • No exposed fasteners
  • Two tone color option
  • Stacking installation
  • Available in an array of architectural coatings and anodized finishes

Series BG525


Series BT525 & BT600 BT Thermal Systems

The BT Systems are ideal for low and mid rise structural silicone glazed ribbon windows. These systems were designed for three types of configuration; two-sided structural silicone support, captured glazing, or a combination of these two configurations. Designed for stacking installation, these systems may be glazed from the inside or outside. BT (thermal) Series utilizes the Poly-Aluminizer. Two-tone colors can be achieved by specifying different finishes for the exterior face covers and interior mullions.

Key Features:

  • 2-1/4" (57.2 mm) Face dimension
  • 1" (25.4 mm) Glazing
  • Low to mid rise applications
  • No exposed fasteners
  • Two tone color option
  • Stacking installation
  • Thermally Broken
  • Available in an array of architectural coatings and anodized finishes

Series BT525

Series BT600


OS2 Offset Glazed Window Wall Systems

Offset Glazed (OS) Systems offer a shallow face reveal which creates a flush exterior appearance. OS Systems were designed for labor-saving stacking-type installations and outside glazed. Internal water deflectors at intersection of intermediate horizontal and vertical mullions allow infiltrated water to be drained into a continuous sill gutter and weeped to the exterior. These systems accommodate most United States Aluminum Entrance Doors.

Key Features:

  • 2" (50.8 mm) Face dimension
  • Series 0S175 available with 1/4" (6.4 mm) or 3/8" (9.5 mm) Glazing
  • Series 0S451 available with 1" (25.4 mm) Glazing
  • Glass offset to front
  • Continuous head & sill
  • Top load gasket
  • Available in an array of architectural coatings and anodized finishes
  • Butt glazed vertical options available (SG Structural Silicone Glazed)

Series 0S175 & 0S175SG

2" (50.8 mm) Offset Glazed & Structural Silicone Offset Glazed Systems





Series 0S451 & 0S451SG

4-1/2" (114.3 mm) Offset Glazed & Structural Silicone Offset Glazed Systems






Series TT601 Top Notch Systems

The Top Notch Systems offer a shallow face reveal that creates a flush exterior appearance. These Systems are designed for labor saving stacking type installations that requires glazing from the interior. Series TT601 utilizes top load gaskets, and offers improved thermal performance using the Poly-Aluminizer™. Internal water deflectors at intermediate horizontal to vertical intersections allow infiltrated water to be drained into a continuous sill gutter and weeped to the exterior. Vertical mullions for structural silicone glazing are also available. The Top Notch systems are designed for fixed horizontal ribbon window or punched opening applications.

Key Features:

  • 2-1/4" (57.2 mm) x 6" (152.4 mm) Frame
  • 1" (25.4 mm) Glazing
  • Glass offset to front
  • Butt glazed vertical option
  • Continuous head & sill
  • Screw race joinery
  • Available in an array of architectural coatings and anodized finishes
  • Unit-Glazed systems available

Series TT601

Deliver clean sightlines and dependable performance with U.S. Aluminum® window wall systems. Our aluminum window wall solutions are ideal for low- to mid-rise applications, such as boutique hotels and modern office buildings, offering a sleek alternative to traditional curtain wall systems with integrated thermal systems for improved energy efficiency.

From Top Notch window systems designed for long, continuous rows of windows and stacking glass window wall systems for quicker installation to structural silicone glazing, our lineup makes it easy to achieve modern wall and window configurations with reliable performance. CRL offers the tools and flexibility to execute demanding designs, from full glass walls for retail spaces to highly detailed window wall system components for government buildings or executive suites. Several systems feature stacking or unitized installation methods designed to reduce field labor and accelerate project timelines.

C.R. Laurence offers a comprehensive selection of window hardware for sleek architectural designs. Our inventory includes window glazing vinyls, latches and locks, and storm window frames and hardware. Browse CRL’s complete selection of window wall solutions and make a bold design statement today.

U.S. Aluminum Customer Service