Section 362.1607. Live loads.

 

(1)   Residential floor loads. Substitute the following wording and live loads for the requirements in line 27 and footnote j of IBC Table 1607.1: - See PDF for table

j. For attics with storage and constructed with trusses, this live load need only be applied to those portions of the bottom chord where there are two or more adjacent trusses with the same web configuration capable of containing a rectangle 42 inches high by 2 feet wide or greater, located within the plane of the truss. The rectangle shall fit between the top of the bottom chord and the bottom of any other truss member, provided that each of the following criteria is met:

i. The attic area is accessible by a pull-down stairway or framed opening in accordance with IBC section 1209.2, and

ii. The truss shall have a bottom chord pitch less than 2:12.

iii. Bottom chords of trusses shall be designed for the greater of actual imposed dead load or 10 psf, uniformly distributed over the entire span.

(2)   Truck and bus garages. Substitute the following wording for the requirements in IBC section 1607.6: Minimum live loads for garages having trucks or buses shall be as specified in IBC Table 1607.6, but shall not be less than 50 pounds per square foot, unless other loads are specifically justified and approved by the department. Actual loads shall be used where they are greater than the loads specified in the table.

CR 00-179 : cr. Register December 2001 No. 552 , eff. 7-1-02; CR 04-016 : renum. to (3), cr. (1), (2), (4) and (5) Register December 2004 No. 588 , eff. 1-1-05; CR 06-120 : r. and recr. (1) and Table 1607.1, r. (4) and (5) Register February 2008 No. 626 , eff. 3-1-08; CR 10-103 : am. (1), Table 1607.1, r. (2), renum. (3) to be (2) and am. Register August 2011 No. 668 , eff. 9-1-11.