Building Codes

• Bob Benedict, Executive Director, ICC Southern Nevada Chapter, 702-353-9802, bobbenedict@cox.net
• Majid Pakniat, Board Member, majid.pakniat@cityofhenderson.com, 702-591-5159
• Jim Ellwood is a Liaison to ICC (email jellwood@iccsafe.org, mobile: 410-937-0343, work: 410-638-3366). ICC High School Technical Training Program.
• Mike Teemant, Plans Examiner, City of Las Vegas Building and Safety, 702-229-6603, mteemant@lasvegasnevada.gov

Study Companion - 2012 International Residential Code

Study Session 7 (IRC Chapters 6 and 7)

• 1. What is the maximum center-to-center stud spacing permitted for a 2-inch by 6-inch, 8-foot-high wood stud bearing wall supporting two floors, roof and ceiling? (2012 IRC Study Companion, p. 185)
• a. 8 inches
• b. 12 inches
• d. 24 inches
• 7. A bored hole shall be located a minimum of __ from the edge of a wood stud. (2012 IRC Study Companion, p. 186)
• a. 3/8 inch
• b. 1/2 inch
• c. 5/8 inch R602.6, #2 and figure R602.6(1)
• d. 1 inch
• 7jj. What is the largest size hole allowed in a single 2×4 (nominal/rough size is 2“x4” but actual/finished size is 1.5“x3.5”)
• a. 2 inches
• b. 3 inches
• c. 2.1 inches (approx. 2-1/8) (see 2012 IRC - R602.6.2 Drilling and notching of studs)
• d. 2-1/2 inches
• Solution - Check 1: 60% x 3.5“ = 2.1”
• Solution - Check 2: 3.5“ - (5/8” + 5/8“ is the closest a hole can be to either edge of the stud) = 3-1/2” - 1-1/4“ = <b>2-1/4”</b>

Roof-Ceiling Construction

• How do I install wood sheathing on top of my wooden trusses?
• “R803.2.3 Installation. Wood structural panel used as roof sheathing shall be installed with joints staggered…” (IRC 2012 for one and two-family dwellings, p. 403)
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