Design may include freehand sketches and consultation of architectural product catalogs. The designer must consider building code guidelines and make decisions regarding the following:

• Location of walls below
• Roof slope
• Roof overhang
• Components that protrude through the roof (e.g., skylight, tubular skylight, chimney)
• Solar panels, if applicable
• Roof style
• Location of gutters and downspouts 

Process/Skill Questions:

• How do protrusions affect drainage?
• How does the roof style and slope affect drainage?
• How will overhang affect the windows and rooms into which they open?
• What are common roof styles?