Rethinking Roof Systems: Why Precast Double Tees Are the Cost-Effective Alternative to Steel

Structural steel has been the go-to solution for roof systems in large-scale commercial and industrial projects for decades. But with rising material costs, tighter timelines, and increasingly complex building requirements, project teams are looking for better solutions. Enter the precast double tee.

Originally developed for parking structures, double tees have evolved into a preferred roof framing solution across a wide range of building types—from fire stations and gymnasiums to car washes and manufacturing facilities. Here’s why they’re giving steel a run for its money.

1. Proven Value in Today’s Market

With overall construction costs under pressure, precast double tees offer a reliable, cost-stable alternative to traditional framing systems. Proudly manufactured in the U.S.A., they eliminate import delays, tariffs, and unpredictable overseas shipping, delivering faster lead times and dependable pricing. Their streamlined production, transport, and installation can mean meaningful savings in both time and budget.

2. Long Spans, Low Profiles

Concrete double tees routinely achieve competitive spans while requiring less depth than steel framing systems, which often depend on deeper truss assemblies. This shallower profile allows for greater interior clearance and provides more space for ductwork, piping, and overhead systems—critical in MEP-heavy environments.

3. Enhanced Fire Resistance Without Additional Assembly

Steel weakens under heat. Precast concrete insulates embedded prestressing strands, maintaining structural integrity far longer during a fire event. With the right flange thickness, roof insulation, and concrete cover, double tees can meet rigorous fire ratings without needing additional fireproofing or assemblies.

 4. Cleaner Aesthetics and Healthier Environments

Steel systems often result in dust-collecting ledges. Double tees, on the other hand, create clean, flat ceilings that resist dust accumulation. The result? Better air quality and easier maintenance—especially important in food processing, healthcare, and manufacturing.

 5. Fast and Flexible MEP Coordination

With options for pre-embedded Unistrut, pipe sleeves, and electrical block outs, precast double tees are tailor-made for modern building systems. Early coordination eliminates the need for additional welding, drilling, and potential delays.

As project timelines tighten and expectations rise, precast double tees offer a smarter approach to roof framing. They combine structural strength with flexibility, speed, and durability—delivering long-term value that traditional steel just can’t match.