Arkansas Remodeling, Renovations, Restoration, Alterations - Commercial Exam

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam (3 questions, 10%)

Key Concepts

Geotechnical investigation triggers (IBC Chapter 18) - Expansive soil (IBC 1803.5.3): In areas likely to have expansive soil, the building official shall require soil tests. Soil is expansive when it meets all four provisions: (1) plasticity index 15 or greater per ASTM D4318; (2) more than 10 percent of particles pass a No. 200 sieve per ASTM D422; (3) more than 10 percent of particles are less than 5 micrometers; (4) expansion index greater than 20 per ASTM D4829. Items 1–3 need not be shown if the Item 4 test is conducted. - Ground water table (IBC 1803.5.4): A subsurface soil investigation shall determine whether the ground water table is above or within 5 feet (1524 mm) below the lowest floor level where that floor is…

Key Concepts

Exposure classes and mixture limits (Contractor's Guide to Quality Concrete Construction, 4th ed., Page 24, Table 2.5) - F3 — freezing-and-thawing cycles with frequent exposure to water and deicing chemicals: maximum w/cm 0.40, minimum compressive strength 5000 psi. - S2 — dissolved sulfate between 1500 and 10,000 ppm: maximum w/cm 0.45, minimum 4500 psi (31 MPa). - W1 — concrete in contact with water where low permeability is required: maximum w/cm 0.50, minimum 4000 psi (28 MPa).

Concrete cover (Page 100, Table 6.3) — Concrete cast against and permanently exposed to earth (such as footings): minimum cover 3 inches (75 mm).

Arkansas Remodeling/Renovation/Restoration/Alterations – Commercial Exam | 3 questions (10%)

Key Concepts

Scope, design standards, quality assurance (IBC Chapter 21) - IBC Section 2101.1: Chapter 21 governs the materials, design, construction and quality of masonry. - IBC Section 2101.2: masonry shall comply with the provisions of TMS 402, TMS 403 or TMS 404 as well as applicable requirements of Chapter 21. Masonry veneer complies with Chapter 14 (Section 2101.2.1). - IBC Section 2105.1: a quality assurance program shall be used to ensure the constructed masonry is in compliance with the approved construction documents; it shall also comply with the inspection and testing requirements of Chapter 17 and TMS 602/ACI 530.1/ASCE 6. - IBC Section 2101.3: special inspection of masonry shall be as defined in Chapter 17, or an itemized testing and inspection program meeting or exceeding Chapter 17 shall be…

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam

Key Concepts

Structural steel (IBC 2015, Chapter 22) - Design, fabrication and erection of structural steel elements in buildings, structures and portions thereof shall be in accordance with AISC 360 — Section 2205.1. - Painting of structural steel elements shall be in accordance with AISC 360; painting of open-web steel joists and joist girders shall be per SJI CJ, SJI JG, SJI K and SJI LH/DLH; cold-formed steel members are protected against corrosion per AISI S100; cold-formed light-frame construction per AISI S200 or AISI S220, as applicable — Section 2203.2. - Identification follows the same split: structural steel per AISC 360, cold-formed members per AISI S100, cold-formed light-frame also per AISI S200 or S220 — Section 2203.1. - Seismic: Structures assigned to Seismic Design Category D, E or F shall be…

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam · 3 questions (10%)

Key Concepts

Wood material standards (IBC Chapter 23) - Sawn lumber used for load-supporting purposes (including end-jointed, edge-glued, machine stress-rated or machine-evaluated lumber) must be identified by the grade mark of a lumber grading or inspection agency approved by an accreditation body that complies with DOC PS 20 or equivalent; grading practices and identification must comply with rules published by an agency approved under DOC PS 20 procedures — IBC 2303.1.1. - In lieu of a grade mark, a certificate of inspection as to species and grade is permitted for precut, remanufactured or rough-sawn lumber and for sizes larger than 3 inches nominal thickness — IBC 2303.1.1.1. - Approved end-jointed lumber may be used interchangeably with solid-sawn members of the same species and grade. If used in…

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam (3 questions, 10%)

Key Concepts

Weather protection and the water-resistive barrier (WRB) - Exterior walls shall provide a weather-resistant exterior wall envelope that includes flashing as described in Section 1405.4, prevents accumulation of water by providing a water-resistive barrier behind the exterior veneer, and provides a means for draining water to the exterior (IBC 1403.2, Page 490). A weather-resistant envelope is not required over concrete or masonry walls designed per Chapters 19 and 21. - Not fewer than one layer of No. 15 asphalt felt, complying with ASTM D226 for Type 1 felt, or other approved materials, shall be attached to the studs or sheathing, with flashing as described in Section 1405.4, to provide a continuous WRB behind the exterior wall veneer (IBC 1404.2, Page 491). - Residential application: felt is…

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam (3 questions, 10%)

Key Concepts

Safety glazing — hazardous locations (IBC 2015, Section 2406.4) - Glazing in doors (2406.4.1): Glazing in all fixed and operable panels of swinging, sliding and bifold doors is a hazardous location. Exceptions: (1) glazed openings through which a 3-inch-diameter sphere is unable to pass; (2) decorative glazing; (3) curved glazed panels in revolving doors; (4) commercial refrigerated cabinet glazed doors. - Glazing adjacent to doors (2406.4.2): Hazardous where the nearest vertical edge of the glazing is within a 24-inch arc of either vertical edge of the door in a closed position and the bottom exposed edge of the glazing is less than 60 inches above the walking surface. Exceptions include decorative glazing; an intervening wall or permanent barrier; access through the door to a closet or…

Key Concepts

Gypsum board support and framing (IBC 2504.1.1). Wood supports for lath, gypsum board or gypsum panel products, as well as wood stripping or furring, shall be not less than 2 inches nominal thickness in the least dimension. Exception: wood furring strips installed over solid backing shall be not less than 1 inch by 2 inches nominal. The IRC states the same minimum, adding that 1-inch by 2-inch furring may be used over solid backing or framing spaced not more than 24 inches on center (IRC R702.3.2).

Joint treatment on rated assemblies (IBC 2508.4; cited in the exam's question as Section 2508.5). Fire-resistance-rated gypsum assemblies shall have joints and fasteners treated. Treatment need not be provided where: (1) the board is to **receive a decorative finish such as wood paneling, battens, acoustical finishes or any similar application equivalent…

Key Concepts

Medical services and first aid (§ 1926.50) - The employer shall insure the availability of medical personnel for advice and consultation on matters of occupational health (§ 1926.50(a)), and provisions shall be made prior to commencement of the project for prompt medical attention in case of serious injury (§ 1926.50(b)). - In the absence of an infirmary, clinic, hospital, or physician that is reasonably accessible in terms of time and distance to the worksite, a person who has a valid certificate in first-aid training from the U.S. Bureau of Mines, the American Red Cross, or equivalent training that can be verified by documentary evidence, shall be available at the worksite to render first aid (§ 1926.50(c)). - First aid supplies shall be easily accessible when required (§ 1926.50(d)(1)). Kit contents shall be in a weatherproof container with…

Arkansas Remodeling, Renovations, Restoration, Alterations – Commercial Exam (3 questions, 10%)

Key Concepts

Scope and applicability - The building code applies to construction, alteration, repair, use and occupancy, and demolition of every building or structure (2015 IBC 101.2). Exception: detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade plane with a separate means of egress, and their accessory structures not more than three stories, comply with the IRC (2015 IBC 101.2 Exception; mirrored in IRC R101.2). - Townhouse = a single-family dwelling unit in a group of not less than three attached units, each extending from foundation to roof, with a yard or public way on not less than two sides (2015 IRC R202). - Building, Existing = a building erected prior to the adoption of this code, or one for…