Johns Manville AnnouncesChopped Strand/Rovings Furnace Expansion

Upgrade incorporates state-of-the-art technology to meet growing customer demand

DENVER--(BUSINESS WIRE)--Johns Manville (JM), a leading manufacturer of building and specialty products, today announced plans for a major furnace upgrade in its complex in Waterville, Ohio. Materials produced by this furnace support the thermoplastic and wind energy markets in North America. The upgrade will begin in early 2007 and conclude by mid-summer. This unit will be out of service for approximately six months.

“We recognize the reduced capacity situation in North America while the furnace is being upgraded and have invested considerable effort to ensure we are positioned to cover existing customer demand”

“We recognize the reduced capacity situation in North America while the furnace is being upgraded and have invested considerable effort to ensure we are positioned to cover existing customer demand,” said Boz Malik, Americas business leader for Global Reinforcements. “The new state-of-the-art furnace will be capable of producing high-quality product to meet the growing demand from our valued customers.”

“This investment is a major improvement that allows us to expand and enhance our capabilities,” said Mike Huff, vice president and general manager, Global Reinforcements. “This significant project underscores JM’s commitment to delivering world-class products to growing North American markets such as thermoplastics and wind energy.”

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 in excess of $2.5 billion and holds leadership positions in all of the key markets that it serves. Johns Manville employs approximately 8,500 people and operates 43 manufacturing facilities in North American, Europe and China. The Global Reinforcements business is a part of the Engineered Products Group, one of JM’s two strategic business units. Additional information can be found at www.jm.com.