Johns Manville Celebrates 160 Years in Business at JEC World

DENVER – Tuesday, March 6, 2018 – Johns Manville (JM), a market-leading manufacturer of continuous filament glass fiber and a Berkshire Hathaway company, will celebrate 160 years in business at JEC World 2018 this week in Paris.

“Johns Manville has a rich history of innovation and leadership in the global markets we serve,” said Mary Rhinehart, President and CEO. “We manufacture premium products for use in many applications, while also delivering positive and powerful JM Experiences. JM is excited to return to JEC World to strengthen our existing customer relationships and find new opportunities.”

JM started in 1858 as a roofing company after Henry Ward Johns created a roofing shingle in the basement of his New York City home. His company later merged with a company owned by Charles Manville. Today, JM holds leadership positions in the key markets it serves for thermal and acoustical insulation, waterproofing, filtration, flooring, drywall, wall coverings and glass fiber composites.

JM products help create more comfortable environments; improve the energy-efficiency and durability of buildings; enhance indoor air quality; reduce noise; and improve fire resistance, among other things. Application of JM products include reinforcing waterproofing membranes and roofing shingles; strengthening wind energy blades; insulating aircrafts; and helping to lighten automobiles to reduce CO2 emissions.

“JM is a leader in developing innovative solutions for our customers that protect value, reduce energy consumption, improve the environment and help preserve the resources of our planet,” said Enno Henze, President of JM’s Engineered Products business.

About Johns Manville
Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality building and specialty products. In business since 1858, the Denver-based company has annual sales of $3 billion and holds leadership positions in all of the key markets that it serves. Johns Manville employs 7,300 people and operates 43 manufacturing facilities in North America, Europe and China. Additional information can be found at

Karin Demez, Johns Manville +32 473 809 885