ICC F12 General Building Contractor (B) Exam (2015 IBC/IRC)

A 'mark' is an identification applied by the manufacturer giving the manufacturer's name and the product's function, while a 'label' additionally carries performance characteristics and the identification of an approved agency (a 'manufacturer's designation' instead indicates compliance with a specified standard or set of rules).

LABELED means a label, seal, symbol or identifying mark of a nationally recognized testing laboratory or inspection agency that maintains periodic inspection of production has been affixed; LISTED means inclusion in a published list, and APPROVED means acceptable to the building official.

Per IRC R202 an ADDITION is an extension or increase in floor area OR height (so adding a second story is an addition), while an alteration is construction other than repair or addition and a repair is renewal of part of a building for maintenance or to correct damage.

FACILITY covers all or any portion of buildings, structures, site improvements, elements and pedestrian or vehicular routes on a site; a LOT is a parcel of land considered as a unit, a STRUCTURE is that which is built or constructed, and a BUILDING is any structure used or intended for supporting or sheltering any use or occupancy.

IBC Table 509 requires an incinerator room to have BOTH a 2-hour separation AND an automatic sprinkler system, whereas furnace rooms and refrigerant machinery rooms require 1 hour OR sprinklers.

IBC 1020.4 limits dead ends to 20 feet where more than one exit or exit access doorway is required, but Exception 2 permits up to 50 feet in those listed groups when the building is sprinklered throughout per 903.3.1.1 (the Group I-3 Condition 2, 3 or 4 50-foot allowance is a separate exception).

IBC 1005.3.1 uses 0.3 inch per occupant generally; the 0.2-inch factor applies only to buildings (other than Groups H and I-2) equipped throughout with an automatic sprinkler system AND an emergency voice/alarm communication system.

IBC 1009.3 requires not less than 48 inches clear between handrails for a stairway serving as part of an accessible means of egress (waived by Exception 2 in buildings sprinklered throughout), while 44 inches is only the general minimum stairway width of Section 1011.2 and does not override a larger required capacity.

IBC 1004.4 computes occupant load at not less than one person per 18 inches of seating length where fixed seating has no dividing arms, but one person per 24 inches of booth seat length measured at the backrest for booths.

Per IBC 2304.12.1.1, joists or structural floors closer than 18 inches to exposed ground must be naturally durable or preservative-treated, while for girders the threshold is closer than 12 inches.

Before use, fire-retardant-treated wood must be dried to a moisture content of 19 percent or less for lumber and 15 percent or less for wood structural panels.

IRC R312.1.3 Exception 2 permits guards on the open side of stairs to reject only a 4-3/8-inch sphere, while the general guard limit is a 4-inch sphere and the triangular opening formed by riser, tread and bottom rail is limited to a 6-inch sphere.

IBC 1014.2 requires uniform handrail height above stair tread nosings of not less than 34 inches and not more than 38 inches; the 30-to-34-inch range applies only to alternating tread devices and ships ladders.

Per Concrete Manual Section 4.2, Type V sulfate-resistant cement should be used for severe sulfate exposures and Type II for moderate exposures (Type III is high-early-strength, not sulfate-resisting).

Per IBC 102.1, where a general requirement conflicts with a specific requirement addressing the same condition, the specific requirement governs; the 'most restrictive governs' rule applies instead where different sections specify different materials, methods of construction or other requirements for the same case.