How is it constructed/rated?
Fire-resistance-rated walls and/or ceiling designs have been subjected to specific testing in order to determine the resistance rating (1 hour, 2 hour., etc.). Also, reference the Indiana Building Code Chapter 7: Fire-Resistance-Rated Construction.Fire-Resistance-Rated Construction (PDF)

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1. What is Fire-Resistance-Rated Construction?
2. Why is Fire Resistance Rated Construction important?
3. How is it constructed/rated?
4. What's the difference between a fire wall and a fire barrier?