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Property Descriptionhard20% of exam

During an inspection, an appraiser notes that the subject’s exterior walls consist of 8-inch concrete masonry units (CMUs) with solid grout fill and reinforced bond beams at every third course. Interior partitions are lightweight metal stud with gypsum board. No combustible framing is present in load-bearing elements. Which ASTM E1527-21 construction classification best describes this building?

Correct Answer

B) Type II-B — Noncombustible, unprotected structural frame and exterior walls.

ASTM E1527-21 (referenced in USPAP Advisory Opinion 21 and commonly applied in appraisal practice for construction classification) defines Type II-B as noncombustible construction (e.g., CMU, concrete, steel) with *no fire-resistance rating required* for structural members or exterior walls. The described CMU walls are noncombustible but lack specified fire-resistance ratings (e.g., no mention of 1- or 2-hour assemblies); interior metal studs confirm noncombustible framing. Type I-A requires 3-hour ratings — not supported. Type III-A permits combustible interiors (here, only noncombustible metal studs/gypsum), and Type IV-HT requires heavy timber — neither applies.

Answer Options
A
Type I-A — Noncombustible, 3-hour fire-resistance-rated structural frame and exterior walls.
B
Type II-B — Noncombustible, unprotected structural frame and exterior walls.
C
Type III-A — Combustible interior elements permitted, but exterior walls noncombustible and fire-resistance-rated.
D
Type IV-HT — Heavy timber with noncombustible exterior walls.

Why This Is the Correct Answer

ASTM E1527-21 (referenced in USPAP Advisory Opinion 21 and commonly applied in appraisal practice for construction classification) defines Type II-B as noncombustible construction (e.g., CMU, concrete, steel) with *no fire-resistance rating required* for structural members or exterior walls. The described CMU walls are noncombustible but lack specified fire-resistance ratings (e.g., no mention of 1- or 2-hour assemblies); interior metal studs confirm noncombustible framing. Type I-A requires 3-hour ratings — not supported. Type III-A permits combustible interiors (here, only noncombustible metal studs/gypsum), and Type IV-HT requires heavy timber — neither applies.

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