During a fire, truss construction in roofs and floors can pose a threat to firefighters. NIOSH recommends posting truss identification signs outside all buildings with truss construction. Some state and local fire marshals require specific truss construction signs.
Use these truss signs and labels to identify roof or floor trusses in your building
Display at building entrances, or as required by local code
Check the product description to ensure that you select an appropriate truss sign for your location