Leadership Overview
Johns Manville has 7 executives leading key functions including strategy, information technology, and product systems.
Driven by innovation, Johns Manville manufactures insulation, roofing materials, and engineered products, shaping sustainable building solutions and impacting global infrastructure through advanced material science.
Driven by innovation, Johns Manville manufactures insulation, roofing materials, and engineered products, shaping sustainable building solutions and impacting global infrastructure through advanced material science.
Leadership Roles at Johns Manville
Jonathan (John) Vasuta - President and Chief Executive Officer
Jonathan (John) Vasuta, the President and Chief Executive Officer at Johns Manville, directs the company's overarching strategy and operational execution. Vasuta guides the enterprise's commitment to manufacturing high-performance insulation, roofing materials, and engineered products. This leadership role involves setting the vision for innovation and sustainable practices across all business units. By focusing on market leadership and customer value, Jonathan (John) Vasuta ensures the company's continued growth and impact in the building materials sector. The Chief Executive Officer's purview extends to financial performance, strategic partnerships, and fostering a culture of excellence throughout the global organization. Vasuta's strategic direction underpins the company's mission to enhance the quality of life through better building solutions.

Robert Wamboldt - President & Chief Executive Officer
Robert Wamboldt, the President & Chief Executive Officer at Johns Manville, drives the strategic direction and operational oversight for the organization. Wamboldt's leadership focuses on advancing the company's position as a premier manufacturer of insulation, roofing materials, and engineered products. This executive function involves cultivating key relationships with stakeholders and ensuring alignment with corporate objectives. Through meticulous planning and execution, Robert Wamboldt champions initiatives that enhance product innovation and market penetration. The Chief Executive Officer's responsibilities encompass guiding the company's financial health and long-term sustainability. Wamboldt's strategic vision propels Johns Manville's mission to deliver essential building materials that improve energy efficiency and structural integrity.
Gregory Clarke - President, Insulation Systems
Gregory Clarke, the President, Insulation Systems at Johns Manville, leads the strategic development and operational management of the company's insulation product lines. Clarke oversees the innovation, manufacturing, and market deployment of high-performance insulation materials designed for residential, commercial, and industrial applications. This leadership role involves driving product differentiation, ensuring quality control, and expanding market reach within the building materials sector. By focusing on sustainable solutions and energy efficiency, Gregory Clarke enhances the value proposition of Johns Manville's insulation offerings. The President, Insulation Systems' responsibilities include managing P&L for the division, fostering cross-functional collaboration, and aligning business objectives with corporate strategy. Clarke's direction ensures the continued success and market leadership of the insulation systems division.

Janet Myhre - President
Janet Myhre, the President at Johns Manville, directs key strategic initiatives and operational functions across designated business segments. Myhre's leadership focuses on driving performance and growth within the company's diverse portfolio of building materials and engineered products. This executive position involves overseeing market strategies, optimizing resource allocation, and ensuring alignment with the company's overall mission. By championing operational excellence and customer-centric approaches, Janet Myhre strengthens Johns Manville's market position. The President's responsibilities include fostering strategic partnerships, managing key stakeholder relationships, and guiding the execution of critical business plans. Myhre's leadership contributes significantly to the company's sustained success and its commitment to delivering innovative solutions.
Joseph Smith - President, Roofing Systems
Joseph Smith, the President, Roofing Systems at Johns Manville, spearheads the strategic direction and operational execution for the company's roofing solutions division. Smith oversees the development, manufacturing, and distribution of a comprehensive range of roofing materials, including asphaltic and single-ply systems, for commercial and residential markets. This leadership position involves driving product innovation, ensuring superior quality and performance, and expanding market share in the competitive roofing industry. By focusing on durability, sustainability, and ease of installation, Joseph Smith enhances the value and reliability of Johns Manville's roofing products. The President, Roofing Systems' responsibilities include managing the division's financial performance, cultivating strong customer relationships, and leading a dedicated team. Smith's strategic oversight ensures the continued growth and market leadership of the roofing systems business.
John Schellenberger - Chief Information Officer
John Schellenberger, the Chief Information Officer at Johns Manville, architects the company's technology strategy and digital transformation initiatives. Schellenberger oversees the development and implementation of robust IT infrastructure supporting the manufacturing of insulation, roofing materials, and engineered products. This critical role involves ensuring data security, optimizing operational efficiency through technology, and driving innovation in digital solutions. By leveraging cutting-edge technologies, John Schellenberger enhances the company's competitive advantage and supports its global operations. The Chief Information Officer's leadership ensures seamless integration of information systems across all departments, facilitating informed decision-making and operational agility. Schellenberger's focus on technological advancement empowers Johns Manville to meet evolving market demands.
John Shellenberger - Vice President & Chief Information Officer
John Shellenberger, the Vice President & Chief Information Officer at Johns Manville, directs the company's information technology operations and strategic digital roadmap. Shellenberger manages the technological backbone that supports the production of insulation, roofing materials, and engineered products, ensuring system reliability and scalability. This executive position involves leading cybersecurity efforts, optimizing enterprise resource planning systems, and fostering a culture of technological innovation. By implementing advanced IT solutions, John Shellenberger enhances operational efficiency and supports Johns Manville's global business objectives. The Vice President & Chief Information Officer's responsibilities include overseeing IT governance, managing vendor relationships, and driving digital transformation projects. Shellenberger's expertise ensures that technology effectively supports the company's manufacturing excellence and market leadership.

Explore Leadership Teams in Building Materials
Nucor Corporation engages in the manufacture and sale of steel and steel products. The company operates in three segments: Steel Mills, Steel Products, and Raw Materials. The Steel Mills segment produces hot-rolled, cold-rolled, and galvanized sheet steel products; plate steel products; wide-flange beams, beam blanks, and H-piling and sheet piling structural steel products; and bar steel products, such as blooms, billets, concrete reinforcing and merchant bars, and engineered special bar quality products. This segment sells its products to steel service centers, fabricators, and manufacturers in the United States, Canada, and Mexico, as well as engages in the steel trading and rebar distribution businesses. The Steel Products segment offers steel joists and joist girders, steel decks, and galvanized torque tubes for use in solar arrays, hollow structural section steel tubing, electrical conduit, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, steel grating and expanded metal, wire and wire mesh, metal building systems, insulated metal panels, steel racking, overhead doors, and utility towers and structures for communications and energy transmission. This segment is also involved in the piling distribution business. The Raw Materials segment produces direct reduced iron (DRI); brokers ferrous and nonferrous metals, pig iron, hot briquetted iron, and DRI; supplies ferro-alloys; processes ferrous and nonferrous scrap metal; and engages in the natural gas production and industrial gas business. This segment sells its ferrous scrap to electric arc furnace steel mills and foundries for manufacturing process; and nonferrous scrap metal to aluminum can producers, secondary aluminum smelters, steel mills and other processors, and consumers of various nonferrous metals.
Company Leadership
PR

Universal Stainless & Alloy Products, founded 1994 and headquartered in Bridgeville, Pennsylvania, produce semi-finished and finished specialty steel long products and plate, including nickel alloy, stainless steel, tool steel and aircraft quality low alloy steels, in a wide variety of grades and product forms.
Company Leadership CZ
DO
SD
SR
Founded in 1991 and headquartered in Austell, Georgia, YKK AP America is a technology-oriented manufacturer of commercial facade systems, as well as residential doors and windows.
Company Leadership JJ
WG

Holcim Ecuador S.A. is a leading provider of cement, aggregates, and concrete solutions, catering to the construction market. With over 100 years of experience, the company operates multiple facilities across Ecuador, including integrated cement plants and concrete production sites. Holcim is committed to sustainability and innovation, offering a range of products designed for various construction needs. Their subsidiary, Geocycle, emphasizes circular economy practices through waste co-processing.
Company Leadership DE
WS
CD