Robertson Building Systems
Flange
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Flange braces are the structural members that attach purlins, girts, and eave struts to primary structural members (columns or rafters). They are used to prevent the main frame from twisting or buckling laterally under the load. Flange braces are an essential structural part and must be installed properly at all locations.
Flange braces are the structural members that attach purlins, girts, and eave struts to primary structural members (columns or rafters). They are used to prevent the main frame from twisting or buckling laterally under the load. Flange braces are an essential structural part and must be installed properly at all locations.
Flange braces can also be very useful as an erection aid to align the purlins and eave struts for easier and lower cost roof installation. Purlin bracing is an angle that connects the bottom flange of adjoining purlins to prevent purlin roll.