Corle "A" Panel: A wall panel utilizing a semi-concealed fastening system. Manufactured from 26 or 24-gauge galvalume substrate. Corle "A" Panel has 1-1/4" deep major ribs 12" on center covering 36" per panel width. 
 

• ASTM E1680 Air Leakage Test through Exterior Metal Roof Panel Systems 

• ASTM E1646 Water Penetration Test of Exterior Metal Roofing