Understand Allowable Areas and Heights in Building Code
Description
We will study the 2018 International Building Code (IBC) Chapter 5 - General Building Heights and Areas. Specifically, you will learn how to determine the allowable areas, heights and number of stories in buildings design. Concepts and building code definitions are first explained, then a step-by-step problem solving exercises follows each section. See list of topic below. This class is designed for Architects, commercial-building designers and architectural students.
Allowable Areas
- Open Space concept #1
- Open Space concept #2
- Open Space Benefits
- Frontage Increase equation
- Definition of Public Ways and interpretation of Open Space
- How to measure Width
- The closest interior lot line
- The entire width of a street, alley or public way
- The exterior face of an adjacent building on the same property
- Width between 20’ and 30’
- Width - Weighted average calculations
- Perimeter calculations
- Fronts calculations
- Frontage Increase calculations
- Maximum Frontage Increase
- No Frontage Increase
- How to deal with Fire Walls
- Building Area definition
- Building Area - The area included within surrounding exterior walls
- Building Area - No surrounding exterior walls
- What elements affect allowable area?
- Unlimited area and Special provisions
- Should basements be included in allowable area of a building?
- Should mezzanines be included in allowable area of a building?
- Four Sections on solving allowable area
- Table 506.2 - Allowable Area Factor
- Single-occupancy, one-story buildings
- Example 1
- Example 2
- Single-occupancy, multistory buildings
- Sa Factor
- Example 3
- Example 4
- Example 5
- Example 6
- Mixed-occupancy, one-story buildings
- Mixed-Use and Occupancy
- Accessory Occupancies
- Nonseparated Occupancies
- Separated Occupancies
- Example 7
- Example 8
- Example 8.5
- Example 9
- Mixed-occupancy, multistory buildings
- Example 10
- Example 11
Allowable Heights and Stories
- Grade plane definition
- Level surface
- Sloped surface
- Example
- Basement definition
- Story above grade plane definition
- Entire finished floor above grade plane
- More than 6 feet above grade plane
- More than 12 feet above the finished ground at any point
- Building Height definition
- Hip roof/ Gable roof
- Flat roof with parapets
- Multistory building with basement
- Table 504.3 - Allowable building height above grade plane
- Table 504.4 - Allowable number of stories above grade plane
- Example 12
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Free
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