Abstract
Building code requirements mandate minimum uplift resistance for roof assemblies. The building codes list approved test methods that determine uplift resistance of roof assemblies (for those roof assemblies that cannot have uplift resistance determined analytically). Underwriters Laboratories (UL) test method UL 580, "Tests for Wind Uplift Resistance of Roof Assemblies," is currently referenced in building codes as an approved method to determine uplift resistance of roof assemblies. Theoretical analyses of contractor-fabricated aluminum Galvalume galvanized steel, terne-coated stainless steel and terne-coated carbon steel roof panels were performed to determine uplift resistance in accordance with standard design practice. Becauase the uplift resistance of copper panel roof systems cannot be determined analytically, NRCA embarked on a testing program of contractor-fabricated copper panel roof systems. All metal panels are flat pan with double-lock standing seams. Analysis was performed by ENCON Consultants and testing was performed at the Hurricane Testing Laboratory in West Palm Beach, FL. NRCA now has a copper panel roof system listing in the UL Roofing Materials & Systems Directory. The analysis, testing, approval infomration and purpose will be discussed in this paper.
Building code requirements mandate minimum uplift resistance for roof assemblies. The building codes list approved test methods that determine uplift resistance of roof assemblies (for those roof assemblies that cannot have uplift resistance determined analytically). Underwriters Laboratories (UL) test method UL 580, "Tests for Wind Uplift Resistance of Roof Assemblies," is currently referenced in building codes as an approved method to determine uplift resistance of roof assemblies. Theoretical analyses of contractor-fabricated aluminum Galvalume galvanized steel, terne-coated stainless steel and terne-coated carbon steel roof panels were performed to determine uplift resistance in accordance with standard design practice. Becauase the uplift resistance of copper panel roof systems cannot be determined analytically, NRCA embarked on a testing program of contractor-fabricated copper panel roof systems. All metal panels are flat pan with double-lock standing seams. Analysis was performed by ENCON Consultants and testing was performed at the Hurricane Testing Laboratory in West Palm Beach, FL. NRCA now has a copper panel roof system listing in the UL Roofing Materials & Systems Directory. The analysis, testing, approval infomration and purpose will be discussed in this paper.
Date
9/2002
9/2002
Author(s)
James Kirby; Bala Sockalingam
James Kirby; Bala Sockalingam
Page(s)
Keyword(s)
uplift resistance; metal panel roof system; UL 580; UL 1897; aluminum; copper; galvalume; galvanized steel; stainless steel; terne coated stainless steel; terne coated carbon steel
uplift resistance; metal panel roof system; UL 580; UL 1897; aluminum; copper; galvalume; galvanized steel; stainless steel; terne coated stainless steel; terne coated carbon steel