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2024 International Building Code (IBC)
Chapter 26 Plastic

Quiz: 2024 International Building Code (IBC) Chapter 26 Plastic

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1. Which of the following materials is NOT explicitly governed by the provisions of IBC Chapter 26?

Foam plastic insulation
Plastic lumber
Glass block
Light-transmitting plastics

2. According to Table 2603.1.2, which standard applies to Polyisocyanurate foam plastic insulating sheathing?

ASTM C578
ASTM C1289
UL 723
NFPA 276

3. What information is required on the label of foam plastic insulation packages delivered to a job site?

Manufacturer’s name, product listing, and installation date
Product identification, flame spread index, and smoke-developed index
Manufacturer’s name, product listing, product identification, and information for code compliance
Installation instructions, R-value, and maximum thickness

4. Unless otherwise indicated, what is the maximum flame spread index required for foam plastic insulation?

5. In cold storage buildings equipped with an automatic sprinkler system, foam plastic insulation up to 10 inches thick is permitted if tested in a thickness of 4 inches (102 mm). What are the required surface-burning characteristics for such insulation?

FSI not more than 25, SDI not more than 450
FSI not more than 75, SDI not more than 450
FSI not more than 75, SDI not limited
FSI not more than 100, SDI not more than 450

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