Braces for purlins must be spaced at a maximum of what distance on center?

Braces for purlins must be spaced at a maximum of 4 feet on center to ensure structural integrity and stability of the roof system. This spacing is specified to effectively resist lateral loads and prevent excessive deflection of the purlins, which can occur due to wind or other forces. Proper bracing is crucial in maintaining the overall strength of the structure, particularly in preventing the purlins from buckling or twisting under load.

In building and construction, adherence to these spacing guidelines is essential to comply with building codes and best practices. Additionally, the 4-foot maximum spacing is a common standard that reflects a balance between structural support and material efficiency, making it a widely accepted practice in the industry. Ensuring that braces are positioned at this interval helps to distribute forces evenly and contributes to the longevity and safety of the roof system.