Under 2021 IBC Section 602.5, which statement describes the materials permitted in Type V construction?
Correct Answer
B) Structural elements and walls may use any material the code allows
Section 602.5 permits Type V structural elements, exterior walls and interior walls to use any materials permitted by the code. Wood framing is a common example, but Type V does not mean wood-only construction. Applicable ratings and the other code requirements still apply; this material permission is not proof of a particular building’s compliance.
Why This Is the Correct Answer
Option B is correct because Section 602.5 states that Type V construction is that in which the structural elements, exterior walls and interior walls are of any materials permitted by the code. Wood framing is a common example, but Type V is not limited to wood.
Why the Other Options Are Wrong
Option A: Structural elements in the building must be made of steel, with masonry walls
Option A is wrong because Type V does not require steel structural elements with masonry walls. The code permits any material the code allows for those elements.
Option C: Only heavy timber is permitted for the structural elements
Option C is wrong because heavy timber is a separate construction type in the IBC, and Type V is not limited to heavy timber. Type V permits any materials allowed by the code.
Option D: Unreinforced masonry is required for exterior and interior walls
Option D is wrong because Type V does not require unreinforced masonry for exterior and interior walls. Walls may be built of any materials permitted by the code.
Type V means variety
Think V for variety: Type V allows any material the code permits, so wood is common but not the only choice.
How to use: Use this to recall what materials the IBC permits in Type V construction.
Exam Tip
When a code definition says 'any materials permitted by this code,' reject options that restrict the type to one specific material.
Common Mistakes to Avoid
- -Assuming Type V means wood-only construction
- -Confusing Type V with heavy timber construction
- -Treating a construction type label as proof of code compliance
Concept Deep Dive
Analysis
This question tests the definition of Type V construction under the 2021 International Building Code. Section 602.5 defines Type V as construction in which structural elements, exterior walls and interior walls may be of any materials permitted by the code, which is why wood framing is common but not required.
Background Knowledge
The International Building Code classifies buildings into construction types, generally Types I through V, based on materials and fire-resistance. Type V is the most flexible as to materials and is common for wood-framed houses and small buildings. Appraisers may note construction type, but classification alone does not prove a building complies with all code requirements.
Real-World Application
An appraiser reviewing plans for a small wood-framed apartment building sees it listed as Type V-B construction. The appraiser notes the construction type in the report while recognizing that this label alone does not confirm code compliance.
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