Difficulty: Easy
Correct Answer: Skylight (roof window)
Explanation:
Introduction / Context:
Rooms with deep plans or without external walls often rely on roof openings for daylight and, sometimes, ventilation. Different roof-lighting devices have specific names based on their form and placement.
Given Data / Assumptions:
Concept / Approach:
A “skylight” (roof window) is a glazed opening set into a roof plane to admit light directly from the sky. A “lantern window” (roof lantern) is a raised glazed structure with vertical sides, more architectural and often used over halls or stairwells. “Dormer windows” are vertical windows projecting from pitched roofs, primarily in attics, not in flat roofs. “Louvered windows” regulate airflow rather than admit ample light; “clerestory” is a high wall window below the roof edge, not a roof opening.
Step-by-Step Solution:
Identify placement: in the flat roof fabric itself.Select the generic term for such a roof opening → “skylight.”Differentiate from lantern (raised glazed structure) and dormer (in sloping roofs).Choose “Skylight (roof window).”
Verification / Alternative check:
Architectural standards refer to flat-roof rooflights as skylights; roof lanterns are a subtype with a raised ridge and glazed sides.
Why Other Options Are Wrong:
Dormer: needs pitched roof and vertical face.Lantern: different configuration; not the generic flat roof opening.Louvered: airflow control, not primarily daylighting.Clerestory: high wall windows, not in the roof plane.
Common Pitfalls:
Confusing lanterns with skylights; neglecting waterproofing and fall toward gutters around skylights.
Final Answer:
Skylight (roof window).
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