Johns Manville Recognized as a 2021 “Preferred Partner” from David Weekley Homes

David Weekley Homes, one of the nation’s largest privately-held home builders, announced on August 31 that Johns Manville (JM) is a winner of the 17th annual National Preferred Partner Award. 

The award recognizes field and manufacturing partners that have consistently operated at world-class levels, as determined by the home builder’s supplier evaluation platform. This comprehensive process, anchored by the National Preferred Partner Survey, evaluates companies in the areas of quality and customer service. This is the eighth time JM has been recognized since 2011.

“This past year has presented an unexpected number of challenges for the homebuilding industry. At David Weekley Homes, we have been fortunate to have exceptional National Preferred Partners who provided their products and expertise during an unprecedented time. They have helped us navigate these obstacles to continue delivering a high-quality product,” said John Schiegg, Vice President of Supply Chain Services for David Weekley Homes.

“We’re honored to be recognized by David Weekley Homes for our product quality and service, especially during these challenging times,” said Tommy Knappich, Vice President and General Manager of Building Insulation at Johns Manville. “We continue to value our partnership with David Weekley Homes. This past year has made it clear that we need to align ourselves with partners that share the same core values as JM.”

JM has delivered high-quality service and products matched to builder and contract needs for more than 160 years. For more information on JM’s complete line of insulation products, visit

About David Weekley Homes 
David Weekley Homes, founded in 1976, is headquartered in Houston and operates in 19 cities across the United States. David Weekley Homes was the first builder in the United States to be awarded the Triple Crown of American Home Building, an honor which includes “America’s Best Builder,” “National Housing Quality Award” and “National Builder of the Year.” Weekley has also appeared 15 times on FORTUNE magazine’s “100 Best Companies to Work For®” list. Since inception, David Weekley Homes has closed more than 100,000 homes. For more information about David Weekley Homes, visit the company’s website at

About Johns Manville 
Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors and wind energy. In business since 1858, the Denver-based company has annual sales over $3 billion and holds leadership positions in all of the key markets that it serves. Johns Manville employs 8,000 people and operates 46 manufacturing facilities in North America, Europe and China. Additional information can be found at