Crawlspaces

Crawlspaces

IRC Sections 322 and 408 

R408.1

General ventilation requirements

R408.2

Openings for ventilation

R408.3

Unvented Crawlspaces

R408.6

Finished Grade

R408.4

Access

R408.5

Debris removal

R408.7

R322

Flood resistant construction requirements

R407.1

Wood column protection

R407.2

Steel column protection

R401.3

Drainage

R404.1.9

Isolated masonry piers

R404.1.9.1

Pier Caps

R404.1.9.2

Piers supporting floor girders

R404.1.6

Height above finished grade

R404.1.7

Backfill placement

Flood resistance requirements

R322.1

General Information

 

R322.1.4

Establishing the design flood elevation

R322.1.4.2

Determination of impacts

R322.1.5

Lowest floor

R322.1.6

Protection of mechanical, plumbing and electrical systems

R322.1.7

Protection of water supply and sanitary sewage systems

R322.1.8

Flood-resistant materials

R322.2

Flood hazard areas

R322.3.1

Location and site preparation

R322.3.2

Elevation Requirements

R322.3.3

Foundations

R322.3.4

Walls designed below flood elevation