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At what slope in degrees is a skylight considered to be installed?

  1. 10

  2. 12

  3. 15

  4. 20

The correct answer is: 15

A skylight is generally considered to be installed at a slope of 15 degrees. This angle ensures proper drainage of water and prevents the accumulation of debris that could lead to leaks or other issues. When installed at this slope, the skylight can effectively channel water away from the frame and maintain structural integrity, which is crucial for longevity and functionality. In construction, the appropriate installation angle is important because different slopes can significantly impact the performance of the skylight. An insufficiently steep angle may not facilitate adequate drainage, while an excessively steep angle might create unnecessary challenges in installation and limit practical access for maintenance. Hence, the 15-degree standard is widely accepted as optimal for most skylight installations, balancing both aesthetic appeal and functional requirements to ensure that the skylight performs effectively over time.