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U.S. Aluminum

The Series 4500 Curtain Wall Lets You Put More Money in Your Pocket Without Sacrificing Performance

Curtain Wall 4500


Thermoplastic Connector


In a competitive marketplace, you need high-performance glazing systems that will help you save money and speed up installations. The Series 4500 Curtain Wall does just that.

The Series 4500 Curtain Wall features pressure-relieved horizontals with a patented UNIflash™ system that literally sweeps infiltrated water to the exterior. The UNIflash™ system eliminates the need to install vinyl flashing, which reduces labor costs and saves you time in the field.

Exterior and interior members are internally joined with an injection-molded thermoplastic connector, providing total thermal isolation for superior thermal performance. The unique thermoplastic connector has been tested in accelerated weathering conditions to ensure strength and durability. The Series 4500 features either stick or panel type erection with no exposed joint fasteners. Available as captured glazed or two-sided structural silicone glazed; this zone-dammed, pressure equalized system delivers exceptional performance and value.
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Glaziers Choose Series 4500

Why Glaziers Choose the Series 4500 Curtain Wall

Imagine installing a curtain wall with the same amount of labor needed to install a storefront. That’s the main advantage of the Series 4500 Curtain Wall. Because all component parts are snap-in, and because the UNIflash™ system eliminates the need to install vinyl flashing, you can save up to 30% on labor costs. Additional benefits include:
  • Faster Project Completion Times
  • Less Expensive Than Competing
    Convention Pressure Bar Systems
  • Pressure-Bar-Free Design
  • Material Savings of Up to 10% to 15%
  • Punch Press Die Sets Available for Quicker Fabrication
Glass Selection ChartInstallation Instructions
Architects Choose Series 4500

Why Architects Choose the Series 4500 Curtain Wall

The Series 4500 Curtain Wall offers many attractive benefits to architects in terms of performance, aesthetics, and meeting building codes. For example, the system delivers U-factors as low as 0.24 and has been tested for water infiltration to 20 PSF. Additional features for architects include:
  • Available SSG Model Offers Uninterrupted Horizontal Glass Spans
  • Two-Tone Colors Can Be Specified
  • Patented UNIflash™ System Sweeps
    Infiltrated Water to the Exterior
  • 2-1/4" Width and 6", 7", or 10" Depth for Taller Spans
  • Tested to 30 PSF, 74 CRF, and < .06 CFM
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USALUM is Your Greatest Resource
for Technical Documents

When you need quick, easy, and anytime access to technical information on our complete line of entrances, storefronts, curtain walls, and commercial windows, look no further than With a few clicks, you’ll gain access to installation instructions, test reports, glazing selection charts, specifications, drawings, product brochures, and more. Take advantage of this valuable resource that can help you increase accuracy and efficiency during installs!

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777 Aviation

CASE STUDY: CRL-U.S. Aluminum Fenestration Systems Help Reimagine 777 Aviation

For decades, Xerox Corp. occupied the 1960s, Craig Ellwood-designed office building located at 777 Aviation Blvd. in El Segundo, Calif. In recent years, the city has evolved into a modern and diverse business community. In step with the city’s transformation, the three-story office complex has been reimagined by SOM Architecture to reflect the needs and culture of today’s workspaces. CRL-U.S. Aluminum supplied high-performance fenestration systems to help modernize the building.

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Our Storefronts Online program is a comprehensive estimating tool for curtain walls, storefronts, all-glass entrances, and now interior office partitions! By automating the design and estimating process, Storefronts Online allows you to bid more jobs with increased accuracy, and in less time. In a matter of clicks, even your newest team member will be able to:
  • Produce a Complete Quote Package Instantly
  • Determine All Metal and Glass Required
  • Optimize Material Fabrication for Higher Yields
  • Generate a Parts List with Pricing
  • Minimize Errors on Estimates
  • Provide Complete Fabrication Details
Learn how to automate your estimating so you can save time and money! Sign up for a free Storefronts Online webinar today and receive a complimentary 30-day trial.
  C.R. Laurence Co., Inc.
2503 E. Vernon Ave., Los Angeles, CA 90058
(800) 421-6144 Ext. 5305
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