In reading 8, Ching goes in depth with many of the elements that go into building a “modern” and effective wall. Modern because it has been looked over and mastered in a way so that they do more than keep you in closed. Exterior walls must provide protection from the weather. Like the sun, wind and all around temperatures. According to the weather outside the wall has a specific way to handle it. Roofing materials provide the water-resistant covering for a roof system. Some factors to consider when trying to construct a roof is the material requirements for installation, maintenance, and durability, resistance to wind and fire, and, if visible, the roofing pattern, texture, and color. Many more things go into making a wall, like veneers made in different types of materials. All requirements to make a successful constructed wall.