New York State Asbestos Investigator Practice Exam

What type of insulation is categorized as TSI when it is found in commercial buildings?

1. Cellulose insulation

2. Fibrous glass insulation

3. Foam insulation

4. Spray foam insulation

The correct answer is: Fibrous glass insulation

The correct response identifies fibrous glass insulation as the type of insulation categorized as Thermal System Insulation (TSI) commonly found in commercial buildings. TSI encompasses insulation materials used to conserve energy, control temperature, and provide noise reduction in mechanical systems, including piping, ducts, and HVAC components. Fibrous glass insulation, specifically, is designed to handle thermal resistance and is often employed in commercial settings due to its effectiveness and versatility. It is characterized by its composition of glass fibers, which provide an excellent barrier to heat transfer, making it suitable for a variety of commercial applications. While cellulose insulation, foam insulation, and spray foam insulation serve different insulating purposes, they do not typically fall under the TSI category in commercial buildings. Cellulose insulation is often used in more residential applications for thermal and acoustic insulation but does not fit the formal definition of TSI, nor is it primarily found in commercial mechanical systems. Additionally, foam and spray foam insulation are commonly used in sealing gaps and insulating spaces but are not classified as TSI in the context of commercial insulation standards.