What can cause structural integrity issues in the roofing system?

Lack of collar ties can lead to significant structural integrity issues in a roofing system. Collar ties are horizontal members that connect opposing rafters in a roof structure, typically located in the upper portion of the roof's framework. Their primary function is to help resist the outward thrust of the rafters, especially in steeply pitched roofs. In the absence of these ties, rafter thrust can cause the walls to spread, leading to structural failure, sagging ceilings, and other major issues that compromise the overall stability of the roof. Proper installation and engineering of collar ties is essential for maintaining the strength and safety of the roofing system, particularly in areas where strong winds or heavy snow loads are a concern.

In terms of the other options, while too many support beams or improperly installed gutters can be problematic, they do not directly relate to the structural integrity in the same critical way that collar ties do. Conversely, a well-designed roof will typically incorporate all necessary structural elements, including collar ties, thus ensuring overall stability and performance.