Roof design. Pitched hip and gable roofs are generally encouraged. Pitched roofs shall contain safety measures such as overhangs to ensure safety from falling ice, snow, or rain. Roofline offsets shall be provided, in order to provide architectural interest and variety to the massing of the building, and to relieve the visual effect of a single long roof. Architectural embellishments such as dormers, cupolas, masonry chimneys and clock towers are encouraged for visual interest. Flat roofs incorporating a parapet are encouraged for buildings two stories and higher. Mansard roofs are generally discouraged. All air-conditioning units, HVAC systems, exhaust pipes or stacks, elevator housing, and satellite dishes and other telecommunications-receiving devices shall be reasonably screened from view from the public right-of-way and from adjacent properties utilizing walls, fencing, roof elements or landscaping. Utilities shall be placed underground when allowed by code.