38. A small, framed structure is built behind the chimney on the upper portion of a roof. This is used to divert snow and water from the chimney. What is the structure called?
Answer: C
The structure is called a Cricket.
A Cricket is a small, framed structure built behind the chimney on the upper portion of a roof, specifically designed to divert snow and water away from the chimney, preventing potential water damage.
A) Coffer dam.
A coffer dam is a temporary structure used to hold back water during construction projects, particularly in marine environments. It is not relevant to roofing or chimney structures, making this option incorrect.
B) Rake.
A rake refers to the angled edge of a roof or the sloping edge of a gable. While it plays a role in roof design, it does not serve the function of diverting water or snow from a chimney, thus making this option incorrect.
C) Cricket.
A Cricket is specifically designed to redirect water and snow away from a chimney, which is exactly what the question describes. This makes it the correct choice, as it fulfills the purpose outlined in the question.
D) Dormer.
A dormer is a structural element of a building that protrudes from the plane of a sloped roof, often containing a window. While it is a component of roof architecture, it does not serve the purpose of diverting snow and water from a chimney, rendering this option incorrect.
Conclusion
The Cricket is the only option that accurately describes the structure built behind a chimney to divert snow and water, fulfilling the specific function mentioned in the question. All other options either define structures with different purposes or do not relate to the context of chimney protection, confirming the correctness of the Cricket as the answer.