1. FS102 – Building Construction for fire protection
Unit 7 – Ordinary Construction
FS102 – Building Construction for fire protection
FS102: Unit 7 - Ordinary Construction

2. FS102: Unit 7 - Ordinary Construction
Unit 7 Seminar Topics
Characteristics of Ordinary Construction
Exterior and Interior Structural Stability
Fire Barriers
FS102: Unit 7 - Ordinary Construction

3. Characteristics of Ordinary Construction
Common characteristic of ordinary construction is exterior walls made of masonry
Exterior walls are noncombustible or limited combustible, but the interior floors and walls are made of combustible materials
Today, the term has multiple meanings
FS102: Unit 7 - Ordinary Construction

4. Characteristics of Ordinary Construction
Type III construction
Can be described as “Main Street, USA”
Strip mall with lightweight wood roof trusses and concrete block walls
Masonry bearing walls
Wood joists
Roof often similar to the floor in construction
FS102: Unit 7 - Ordinary Construction

5. Characteristics of Ordinary Construction
Bearing and Nonbearing Walls
Void Spaces
Effective Fire Separation
Fire Resistance
FS102: Unit 7 - Ordinary Construction

6. Characteristics of Ordinary Construction
Recent Construction
Departs from ordinary construction
Not necessarily an improvement
Noncombustible voids
Lightweight wood trusses and wooden I-beams can contribute to the accumulations of explosive carbon monoxide
FS102: Unit 7 - Ordinary Construction

7. Exterior and Interior Structural Stability
Inherent structural instability
Failure of a nonmasonry supporting element
Increase in the live load
Collapse of a floor or roof
Impact load of an explosion
Collapse of a masonry unit
Collapse of another building onto the building in question
FS102: Unit 7 - Ordinary Construction

8. Exterior and Interior Structural Stability
Interior collapse of an overloaded floor can cause the walls to collapse
Collapse of an exterior wall may cause an interior collapse
FS102: Unit 7 - Ordinary Construction

9. FS102: Unit 7 - Ordinary Construction
Fire Barriers
Masonry bearing walls as fire barriers
Conditions make a bearing wall less than a fire wall
If buildings have a 12- or 16-inch unpierced bearing wall, these walls form a barrier to the passage of any fire
FS102: Unit 7 - Ordinary Construction

10. FS102: Unit 7 - Ordinary Construction
Fire Barriers
Fire Doors
Additional openings often made without proper protection
Fire fighters need to be trained to inspect a fire door for proper operation
Party Walls
Structural walls that are common to two buildings
Established by mutual contract between the owners
Are thinner than two separate walls
FS102: Unit 7 - Ordinary Construction

11. FS102: Unit 7 - Ordinary Construction
Summary
Characteristics of Ordinary Construction
Exterior and Interior Structural Stability
Fire Barriers
FS102: Unit 7 - Ordinary Construction