|identifies Fire Guard ceilings. Use only Fire Guard products for Fire-Rated assemblies.|
Main Runner Expansion Relief
Fire Guard Ceilings
Local building codes, which require fire-safe construction for many building applications, rely on two ratings to evaluate
Flame spread rating of material
Fire-resistance rating of a construction assembly
These ratings are based on ASTM standards, and compliance is determined by several independent, nongovernmental testing services such as Underwriters Laboratories, Inc.
Flame spread and fire-resistance ratings are two separate issues, and they must be addressed independently in selection and specification.
Selecting the Right UL Fire-Rated Assembly
1. Establish the hourly rating needed to meet code requirements
2. Determine the existing or planned building elements, including structural, mechanical, electrical and finish materials, in the fire-rated assembly.
3. Refer to UL Fire Resistive Ceiling Assemblies for additional information, or contact TechLine (877-ARMSTRONG) for assistance.