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What should proper maintenance procedures include in low slope roofing systems with modified bitumen membranes?

  1. A Patch repair with silicone sealant

  2. B Extend area patch at least 10 inches

  3. C Extend area patch at least 8 inches

  4. D Spray foam insulation

The correct answer is: C Extend area patch at least 8 inches

In low slope roofing systems with modified bitumen membranes, proper maintenance procedures emphasize the importance of adequately extending the area patch to ensure a durable and effective repair. By extending the patch at least 8 inches, you create a sufficient overlap with the existing membrane, which helps to prevent potential leaks and ensures that the patch adheres properly to the substrate. This coverage helps mitigate the risk of water intrusion, contributing to the longevity of the roofing system. Choosing to extend the patch a shorter distance might leave unprotected areas that could allow moisture to penetrate, leading to further damage. On the other hand, extending the patch more than necessary, such as the option suggesting 10 inches, could also lead to excess material usage without added benefit.