Uniform and Attractive with Enhanced Thermal Performance

You have extensive design flexibility with the Butler Thermawall wall system. Fluted panels create an exterior surface with deep corrugations. Fineline panels create shallow corrugations. And flat panels create a smooth embossed exterior surface ideal for high-profile architectural applications. Each features a durable Butler-Cote™fluoropolymer finish with a Kynar 500® or Hylar 5000® coating. The metal interior face is an attractive, virtually flat finish with a polyester white color and is USDA approved.

The Butler Thermawall wall system’s factory-installed poured-in-place foam core insulation and thermal break joint design deliver excellent energy efficiency. Panel thicknesses of 2, 2-1/2, 3, and 4 inches are available to match your thermal performance needs, with R-values ranging from R-14 to R-32. Factory-applied joint sealant provides a complete wall system weather barrier.

Predesigned and factory‑fabricated transition materials make it easy to integrate Stylwall II Flat panels with other Butler Wall Systems, conventional building materials, doors, and windows—without costly field modifications. These components ensure clean connections, faster installation, and long‑term performance, and are available in all Cool Colors offered in the Butler‑Cote™ finish system.

The Butler Thermawall system is engineered with built‑in performance advantages that go beyond energy efficiency. Depending on the configuration, Thermawall insulated metal sandwich panels can achieve one‑ or two‑hour fire‑resistance ratings, providing added protection for code‑driven projects. The system is also FM Global approved, offering proven performance under rigorous testing standards and helping building owners reduce insurance costs through recognized risk‑mitigation certification.

Because only a clip and two fasteners are required at each structural connection, installation of the Butler Thermawall wall system is simple and secure. The entire installation is performed from outside the building envelope, eliminating the need for erection crews to fasten the panels from the inside. The 42-inch panel width (Fluted and Fineline) also helps save installation time and cost.

The Thermawall IMP Sandwich Panel is in stock and has available cut to any length up to 40 feet, giving you fast turnaround for both new construction and replacement projects. Panels can be crated and shipped factory‑direct to your jobsite in just a few days, ensuring you get the exact size you need without delays. Whether you’re starting a new build or replacing an entire wall section, we have you covered with genuine Butler quality and dependable delivery.