Curtain Wall

Reliance™ Products

Reliance™ products offer a multitude of performance and design options. Varied system depths and internal nesting steel reinforcement allow tailoring of the curtain wall system to job-specific performance requirements for applications ranging from self-supported high-span lobby entries to entire building skins.

Custom Engineering

Unlike traditional curtain wall manufacturers, we can start with a clean sheet of paper. We have custom-engineered curtain walls for some of the world’s leading architects on landmark projects including Great American Tower at Queen City—HOK, Three PNC Plaza—Gensler, 1000 Connecticut Avenue—Pei Cobb Freed & Partners and many others.

Architectural Glass

Oldcastle BuildingEnvelope® can provide a fully-glazed system from one source. We are the only curtain wall manufacturer that can design, manufacture, manage and deliver custom-engineered curtain walls with fully-integrated architectural glass all from one source.


Our exclusive computer design and analysis software applications allow us to test, simulate and fully develop custom-engineered designs. And since we also supply architectural glass we have the unique ability to test our designs as one system.

Curtain Wall

Few curtain wall manufacturers can showcase a range of custom and standard curtain wall products and projects as varied as Oldcastle BuildingEnvelope®. We are an unquestioned leader at pushing the limits of traditional curtain wall systems. That’s why visionary architects working on landmark projects, like Cowboys Stadium in Arlington, Texas, designed by HKS, Inc., rely on us.