CertainTeed is reporting that the company has reduced its energy consumption by 15 percent and water usage by 24 percent over the past four years.

In addition, it has decreased the amount of waste going to landfills from its facilities by 33 percent, the company says.

The company says the savings is due to an aggressive approach to sustainability at its more than 60 manufacturing facilities in North America.

“Our world-class team of employees at CertainTeed play a pivotal role in increasing the sustainability of our operations,” said Chris Altmansberger, vice president of operations support and process sustainability at CertainTeed Corp. “Through our collective efforts, we have established a strong culture of respect for the environment that will continue to help preserve and protect the communities in which we live and work.”

During 2010 and 2011, approximately 6,000 CertainTeed employees received sustainability training, which helped drive energy, water and waste reductions. Additionally, more than 30 plants have achieved ISO: 14001 certification, which helps drive continuous improvement in regard to environmental performance.

“Our increased emphasis on sustainability has helped us identify and implement critical initiatives that reduce water and energy use as well as divert waste from landfills,” said Altmansberger. “We have learned that even simple modifications can have a big impact.”

For example, one of CertainTeed’s operational initiatives is to involve employees in waste reduction teams, which uses the lean practice called the “kaizen” approach. This has been instrumental in finding new ideas for recycling and reducing waste that would otherwise be in a landfill. Progress also continues to be made in the recycling of cardboard, pallets and packaging.

“While much has been accomplished, we are committed to continually improving our environmental performance,” said Altmansberger. “We believe strongly in setting sustainability goals, tracking our progress and sharing the results with our employees, suppliers, customers and the community at-large on an ongoing basis.”