West Virginia Contractors License Practice Exam

At what angle is a skylight considered sloped?

1. 10 degrees

2. 12 degrees

3. 15 degrees

4. 20 degrees

The correct answer is: 15 degrees

A skylight is typically considered sloped when it is installed at an angle greater than or equal to 15 degrees. This angle is significant because it allows for effective drainage of water, prevents pooling, and helps reduce the likelihood of leaks. It also enhances the performance of the skylight in terms of natural light infiltration while minimizing thermal loss. Installing skylights at a steeper angle can further improve the overall benefits, such as better ventilation and the ability to shed snow or debris more effectively. While some sources may note that angles as low as 12 degrees can also be acceptable, the 15-degree angle generally provides a good benchmark for optimal functionality and is widely recognized in building codes and practices. Lower angles can increase the risk of water pooling, deterioration of seals, and reduced effectiveness in terms of light and heat management.