The Copper Development Association (CDA) has released a new study to simplify the specification process of copper wall cladding systems for architects, building owners, and contractors.
The study provides quantifiable performance and technical data for common copper wall cladding systems, thereby eliminating the need for end-users to conduct individual, costly, and time-intensive tests to comply with mandatory building code requirements.
CDA tested several common systems in a variety of conditions, according to ASTM/ the American Architectural Manufacturer’s Association (AAMA) testing protocols, successfully obtaining ratings on ASTM E283, Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Skylights, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen, ASTM E331, Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference, ASTM E330, Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure Difference, and AAMA 501.1, Standard Test Method for Water Penetration of Windows, Curtain Walls and Doors Using Dynamic Pressure.
“These results make it easier for architects, building owners, and contractors to specify an ‘off-the-shelf’ tested and rated system,” said Stephen Knapp, CDA’s director of strip, sheet, and plate council.
The current round of testing focused on commonly used styles of standing-seam and flat-seam copper systems: horizontal and diagonal flat-lock panels, horizontal single-lock standing-seam panels, and vertical and horizontal double-lock standing-seam panels.