True or False: Flat roofs have significant slope.

Flat roofs are typically characterized by their minimal slope, designed primarily to facilitate water drainage. While they are called "flat," they usually have a slight pitch to ensure that water does not pool on the surface, which could lead to leaks and other structural issues. The design of flat roofs allows for effective water runoff, but it is not accurate to say they have a significant slope. This is a fundamental aspect of flat roof construction, distinguishing it from pitched roofs, which have greater slopes for better water shedding and ventilation. Hence, stating that flat roofs have significant slope is false, making the chosen answer correct.