Butler Structural Purlins
BUTLER structural purlins are factory pre-punched to assure proper fit and alignment.
BUTLER structural purlins are the connection between the steel structures and the roof and wall systems. They are integrated to the complete building system.
Major secondary structural members used to support the wall and roof panels: purlins are used on the roof and girts are used on the walls.
Designed to meet the 1996 edition of the American Iron and Steel Institute (AISI) of the "cold-formed Steel Design Manual" .
Material meets the national standard "continuous hot-dip galvanized steel sheet and strip (GB-T2518-2008)" claim.
The typical types of roof and wall secondary are "Z" and "C" section.
Z-section is used for continuous span bays, and it is factory pre-punched to match BUTLER panel systems
C-section is used for simple span bays and opening support.
Butler Roof Accessories
To maintain structural integrity and weather tightness, specially designed accessories are available for all BUTLER roof systems. A full range of accessories, including vents, curbs, pipe flashings, BUTLER Lite Panel translucent roof and wall panels, skylights, roof hatches and various gutter and trim options completes the offering and keeps your building attractive and functional for years.