2018 International Building Code (IBC) Loose Leaf

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 2018 International Building Code® (IBC®) Loose Leaf

This code applies to all buildings except detached one- and two-family dwellings and townhouses up to three stories.

The 2018 IBC contains many important changes such as:

• Accessory storage spaces of any size are now permitted to be classified as part of the occupancy to which they are accessory.

• New code sections have been introduced addressing medical gas systems and higher education laboratories.

• Use of fire walls to create separate buildings is now limited to only the determination of permissible types of construction based on
   allowable building area and height.       

• Where an elevator hoistway door opens into a fire-resistance-rated corridor, the opening must be protected in a manner to     
    address smoke intrusion into the hoistway.

• The occupant load factor for business uses has been revised to one occupant per 150 square feet.

• Live loads on decks and balconies increase the deck live load to one and one-half times the live load of the area served.

• The minimum lateral load that fire walls are required to resist is five pounds per square foot.

• Wind speed maps updated, including maps for the state of Hawaii. Terminology describing wind speeds has changed again with 
   ultimate design wind speeds now called basic design wind speeds.

• Site soil coefficients now correspond to the newest generation of ground motion attenuation equations (seismic values).

• Five-foot tall wood trusses requiring permanent bracing must have a periodic special inspection to verify that the required bracing 
   has been installed.

• New alternative fastener schedule for construction of mechanically laminated decking is added giving equivalent power-driven 
   fasteners for the 20-penny nail.

• Solid sawn lumber header and girder spans for the exterior bearing walls reduce span lengths to allow #2 Southern Pine design values.

 Publisher: ICC/2018/3000L18/9781609837341