Exam Cheat Sheet · Quick Reference
Arkansas Remodeling, Renovations, Restoration, Alterations - Residential Exam
Arkansas · PSI Services Contractor
Arkansas State Portion 30 questions
Key Distinctions
Per 2015 IRC R303.1, aggregate glazing for natural light must be not less than 8 percent of floor area, while the openable area for natural ventilation must be not less than 4 percent of floor area.
IRC 2015 Section R303.1Habitable rooms need glazing of not less than 8 percent of floor area (2015 IRC R303.1), while bathrooms and similar rooms need an aggregate glazing area in windows of not less than 3 square feet with one-half openable (R303.3), and no glazing is required where artificial light and a local exhaust system are provided.
IRC 2015 Section R303.1Per IRC R312.1.3, general guards shall not allow passage of a 4-inch sphere, Exception 2 permits guards on the open side of stairs to not allow passage of a 4-3/8-inch sphere, and the triangular opening formed by riser, tread and bottom rail is limited to a 6-inch sphere.
IRC 2015 Section R312.1.3Per Table 4.1 (adapted from 2015 IBC Table 1809.7), one floor requires minimum 12-inch width and 6-inch thickness, two floors require minimum 15-inch width and 6-inch thickness, and three floors require minimum 18-inch width and 8-inch thickness.
Contractor's Guide to Quality Concrete Construction (4th ed.), Page 47 (Table 4.1)Per 2015 IRC R505.3.2, bearing support length shall be not less than 1-1/2 inches at exterior wall supports and not less than 3-1/2 inches at interior wall supports.
IRC 2015 Section R505.3.2Per IRC R408.2, net ventilation opening area shall be not less than 1 square foot per 150 square feet of under-floor area, which may be reduced to 1/1,500 of the under-floor area when an approved Class I vapor retarder covers the ground surface.
IRC Section R408.2An application is deemed abandoned 180 days after the date of filing unless pursued in good faith or a permit is issued, while an issued permit becomes invalid unless work commences within 180 days after issuance or if work is suspended/abandoned for 180 days after commencement; the building official may grant written extensions of not more than 180 days each in both cases.
IRC 2015 Section R105.3.2The definition requires only that the structure be accessory and incidental to the dwelling and located on the same lot, while the 200-square-foot and one-story conditions belong to the permit-exemption provisions, not the definition.
IRC 2015 Section R202 (Accessory Structure)Per 2015 IRC R112.2, an appeal may claim the code was incorrectly interpreted, that its provisions do not fully apply, or that an equally good or better form of construction is proposed, but the board shall not have authority to waive requirements of the code.
IRC 2015 Section R112.2Per IRC R606.4.2, rough, random or coursed rubble stone masonry walls have a minimum thickness of 16 inches, while the 8-inch minimum of R606.4.1 applies to masonry bearing walls more than one story high.
IRC 2015 Section R606.4.2Per IRC R602.10.2.3, lines 16 feet or less shall have not less than two braced wall panels of any length or one braced wall panel of 48 inches or more, while lines greater than 16 feet require at least two panels.
IRC 2015 Section R602.10.2.3Per IRC R302.4.1 Exception Item 1, concrete, grout or mortar may be used in place of a tested firestop system for steel, ferrous or copper pipes, tubes or conduits only where the nominal diameter of the penetrating item is not more than 6 inches and the opening area does not exceed 144 square inches.
IRC 2015 Section R302.4.1Per OSHA 1926.35(e)(3), employers with 10 or fewer employees may communicate the plan orally and need not maintain a written plan.
OSHA 1926 CFR 29, §1926.35(e)(3)Key Terms
Formulas to Know
Glazing area = not less than 8% x floor area; worked example: 300 sq ft x 0.08 = 24 sq ftOpenable area = not less than 4% x floor area; worked example: 300 sq ft x 0.04 = 12 sq ftAggregate glazing in windows = not less than 3 sq ft, one-half of which must be openable (not required where artificial light and local exhaust are provided)Net vent area = under-floor area / 150; reduced to under-floor area / 1,500 where an approved Class I vapor retarder covers the groundConcealed space area shall not exceed 1,000 sq ft, divided into approximately equal areasRequired bracing length = tabulated length for wall above x 1.15 (any adjustment for omitting gypsum board on the inside face is in addition to this 1.15 increase)Working load of new ties = 1/2 of ultimate tensile strength (usual safety factor 2:1)Slope pipe to the outlet or drywell at 1/8 in. per foot (10 mm/m)Permitted where nominal diameter of penetrating item is not more than 6 in. AND opening area does not exceed 144 sq in.20 or fewer employees = 1 facility minimum