ROCKWOOL has acquired 250 acres in Walla Walla County, Washington, to build a state-of-the-art stone wool insulation manufacturing facility featuring proprietary electric melting technology.
The property is located in the Wallula Gap Business Park, a 1,280-acre site zoned for heavy and mixed industrial use. The site is the largest of nine business parks managed by the Port of Walla Walla.
Site grading is now underway for the new factory, which will be ROCKWOOL’s fifth North American manufacturing facility and will support growing demand for the company’s products in the western United States. Construction is tentatively scheduled to begin in the third quarter of 2025 with the start of commercial production targeted for late 2027 or early 2028.
“ROCKWOOL has operated in North America for more than 30 years. We are excited to take this first step toward establishing ourselves in the Mid-Columbia region and growing our stone wool production capacity to better serve customers in the western United States,” said Rory Moss, President of ROCKWOOL North America. “We look forward to engaging with the local communities and sharing more as plans develop.”
ROCKWOOL's facility in Wallula represents a $175 million local investment, creating more than 670 jobs over the course of construction. Once operational, the facility will create 125 direct new jobs earning $8.6 million and generate $2.4 million in state and local taxes.
Project Updates
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