Which of the following factors can compromise firestop effectiveness?

The selection of non-compliant materials significantly compromises firestop effectiveness because these materials may not meet the required standards and specifications necessary to ensure fire resistance. Firestop systems are engineered to create barriers that prevent the spread of fire and smoke through openings in walls, floors, and ceilings. The integrity of these systems relies heavily on the use of approved materials that have been tested and certified for their firestopping capabilities.

When non-compliant materials are utilized, there is a risk that they will not perform as intended during a fire event. This could lead to an increased risk of fire spread, ultimately putting both property and life in danger. Compliance with manufacturer instructions and the use of specified materials are critical for maintaining the safety and effectiveness of firestop installations.

In contrast, when environmentally-friendly options are implemented appropriately and adhere to the necessary firestop requirements, they can still be effective. Additionally, regular maintenance checks ensure that firestop systems remain intact and functional over time, further supporting their effectiveness. Thus, the use of non-compliant materials clearly stands out as a major factor that can undermine the performance of firestopping systems.