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Which term describes a non load-bearing exterior wall cladding system consisting of insulation board attached to the substrate?

1. Stucco

2. Brick veneer

3. Vinyl siding

4. EIFS

The correct answer is: EIFS

The term that best describes a non-load-bearing exterior wall cladding system consisting of insulation board attached to the substrate is EIFS, or Exterior Insulation and Finish System. This system is designed to provide both insulation and a decorative finish to exterior walls, making it particularly effective for energy efficiency in buildings. EIFS typically includes a layer of insulation board that is secured to the wall substrate. This board acts as an insulating barrier, helping to improve thermal performance and reduce energy costs. The system is finished with a weather-resistant coat, which can be textured or smooth, and is available in various colors, contributing to the aesthetic appeal of the building. Additionally, the formulation of EIFS allows it to be lightweight and versatile, fitting a wide range of architectural designs. This characteristic aligns with its definition as a non-load-bearing system, as it does not support structural loads from above, differentiating it from options like brick veneer or stucco, which involve different structural considerations.