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Interior Design Professional Practice Exam

Category - Interior Design Practice Exam

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What is the purpose of subflooring?
  1. It is the nonstructural material that lays under the flooring as a vapor bearer to the outside elements.
  2. It is the drywall layer underneath vinyl flooring so there is a smooth finish to work with.
  3. It is the structural material that spans across floor joists, and a base for finished flooring.
  4. It acts as the cushion layer for carpeting when it’s laid over concrete.
Explanation
Answer: C - The purpose of subflooring is the structural material that spans across floor joists, serves as a working platform during construction, and a base for finished flooring.
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