SteelBuilt Curtainwall Infinity Systems | Glass Steel Curtain Walls

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Curtainwall Infinity System

The SteelBuilt Curtainwall Infinity™ System can use as a back mullion almost any type of custom steel member, allowing architects and designers to use larger areas of glass, smaller frame profiles and greater free spans. The design flexibility allows curtain walls to be incorporated into a nearly limitless range of building types, designs, and performance requirements.

“TGP’s steel curtain wall system made it possible for us to meet the project’s unique geometrical needs without compromising on appearance.”

-Windom Kimsey, design principal and president of TSK Architects

KEY FEATURES

Almost any type of custom steel member can be used for a back mullion–such as stainless steel, box, I-beams and T-shapes
Offers all the advantage of steel: larger free spans, narrower sight lines and improved thermal performance
Narrow sight line of 1-3/4" (45 mm) for interior only or 2-3/8" (60 mm)
Variety of system depths
Infill options up to 2"
Painted finishes in standard and custom choices

Silicone compatible glazing materials for long-lasting seals
Shear block fabrication method
Compatible with SteelBuilt Window & Door® Systems

Optional Features

Structural silicone is available in 2- or 4-sided applications for a smooth monolithic appearance. See SteelBuilt Curtainwall Infinity^™ SSG.
Stainless steel cover caps
Custom extruded aluminum cover caps

Testing

Frame tests performed in accordance with:

AAMA 501.1	Dynamic Water Penetration
ASTM E283	Air Performance
ASTM E331	Static Water Penetration
ASTM E330	Structural Performance

Back Mullions

Almost any type of custom steel member can be used for a back mullion–such as stainless steel, box, I-beams and T-shapes.

Comparison

SteelBuilt Curtainwall^® Family vs. Typical Aluminum Curtain Wall

Givens:

Design Wind Load: 30 psf

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Module/Vertical to Vertical spacing:5'-0"

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Rectangular Verticals: Captured

Aluminum Curtain Wall

SteelBuilt Curtainwall® Systems

SteelBuilt Curtainwall Infinity™ System

Span

12'-6"

Face Width

2-1/2"

Mullion Depth

5"

Overall System Depth

7-1/2"

Durability

Prone to denting, scratching and deterioration

Long term resistance to denting, scratching and deterioration

Long term resistance to denting, scratching and deterioration

Modulus of Elasticity

1/3 that of steel, does not support large lites

3x greater than aluminum to support larger glass lites

3x greater than aluminum to support larger glass lites

Advantages / Disadvantages

Can not support large glass lites without reinforcing
Not as durable as steel

Greater modulus of elasticity to support larger glass lites
Less reinforcement required (if any)
Durability

Greater modulus of elasticity to support larger glass lites
Less reinforcement required (if any)
Durability

Design Ideas

Steelbuilt Design Options

Explore this interactive tool to get a feel for the various benefits and options available when building with SteelBuilt Curtainwall^® Systems.

See Design Options

TOOLS

View Photo Gallery

DOCS & DOWNLOADS

Product Fact Sheet

Product Fact Sheet - SSG

CSI Format Specs

CSI Format Specs - SSG

Spec Manual/Details

Steel Curtain Wall FAQ

Care and Warranty