Lightweight Insulating Cellular Concrete (LWCC) is a versatile solution for roof deck applications, offering a combination of thermal insulation, strength, and fire resistance. Applied as a cast-in-place system, LWCC conforms seamlessly to roofing slopes and contours, creating a stable base for a wide range of roofing membranes and coatings.

LWCC roof decks are ideal for both new construction and reroofing projects across commercial, institutional, and industrial markets. These systems are especially valuable in high-traffic facilities, where energy efficiency and durability are essential. The cellular structure provides high R-value insulation while reducing structural load—an important benefit for long-span roofing applications.

At Elastizell of Wisconsin, we’ve been installing LWCC systems for decades. Our field teams are union-trained and safety-certified, ensuring quality installations that align with project specifications and deadlines. As active members of the National Roof Deck Contractors Association (NRDCA), we stay current on industry innovations, best practices, and performance standards. Whether you’re an architect, contractor, or facility owner, we can help you design a system that balances cost, weight, and long-term performance.

We control every step of the installation—from batching to placement—using our own equipment and experienced crews. This ensures consistent product quality, precise slope-to-drain installation, and dependable service throughout the project lifecycle.

Ready to plan your next roof deck project? Use the form on this page to connect with our team. We’ll help evaluate your needs and determine if LWCC is the right fit for your building envelope.