Below is the updated ROCKWOOL 2026 factory maintenance schedule.
| Factory | Maintenance Shutdown |
|---|---|
| Grand Forks, British Columbia, CA | April 13th – April 24th (inclusive) – complete October 19th – October 22nd (inclusive) |
| Toronto, Ontario, CA | July 6th – July 19th (inclusive) – complete September 14th – September 27th (inclusive) – complete |
| Ranson, West Virginia, USA | September 1st – September 7th (inclusive) – complete |
| Marshall County, Mississippi, USA | October 19th – October 26th (inclusive) December 21st – December 25th (inclusive) |
