TJI® Joists with Flak Jacket® Protection have been discontinued due to recent customer feedback regarding an odor in certain newly constructed homes. This issue is related to a recent formula change to the Flak Jacket coating that included formaldehyde-based resin. This issue is isolated to Flak Jacket product manufactured after Dec. 1, 2016, and does not affect any of the company's other products.
Learn more about Flak Jacket Protection.
For alternative ways to meet today’s fire protection codes see below.