Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
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<strong>Understanding</strong> <strong>UL</strong><strong>UL</strong> Design U411 – Nonbearing Wall Rating (2 HR.)2. 3. 4.1. Floor and Ceiling Runner (Not Shown)2. Steel Studs3. Batts and <strong>Blank</strong>ets*4. Gypsum Board*