Carlisle Companies is a U.S.-based building products manufacturer focused on roofing and weatherproofing systems that help make buildings more energy-efficient. Its business is organized around Carlisle Construction Materials and Carlisle Weatherproofing Technologies, with a portfolio of brands that sell membranes, insulation, architectural metal, and related systems. The company has shifted toward a pure-play building envelope portfolio and uses the Carlisle Experience and Carlisle Operating System to emphasize innovation, labor-saving installation, and customer service. Its products are used mainly in commercial roofing, repair-and-replacement work, and selected residential weatherproofing applications, with a meaningful presence in North America and Europe.