Arkansas Remodeling, Renovations, Restoration, Alterations - Residential Exam

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

Key Concepts

Footing size and depth - Prescriptive footings adapted from the 2015 IBC Table 1809.7: one floor of light-frame construction = 12 in. wide × 6 in. thick; two floors = 15 in. wide × 6 in. thick; three floors = 18 in. wide × 8 in. thick (Contractor's Guide to Quality Concrete Construction, 4th ed., p. 47, Table 4.1). - Exterior footings shall be placed not less than 12 inches (305 mm) below the undisturbed ground surface (IRC R403.1.4). Additional depth may be required for frost protection (R403.1.4.1). - Footing projections, P, shall be not less than 2 inches and shall not exceed the thickness of the footing (R403.1.1). - Top surface of footings shall be level; the bottom surface **shall not have a slope exceeding…

Key Concepts

Concrete cover. Minimum cover for cast-in-place concrete cast against and permanently exposed to earth (such as footings) is 3 in. (75 mm) — ACI 318 as cited in Contractor's Guide to Quality Concrete Construction (4th ed.), Table 6.3, p. 100.

Exposure classes (Table 2.5, p. 24). Each class carries a maximum w/cm and a minimum compressive strength: - F3 — freezing-and-thawing with frequent exposure to water and exposure to deicing chemicals: w/cm 0.40 max, 5000 psi min. - S2 — dissolved sulfate between 1500 and 10,000 ppm: w/cm 0.45 max, 4500 psi min. - W1 — concrete in contact with water where low permeability is required: w/cm 0.50 max, 4000 psi (28 MPa) min.

Key Concepts

Wall thickness (R606.4) - Minimum thickness of masonry bearing walls more than one story high: 8 inches (R606.4.1). Solid masonry walls of one-story dwellings and garages: not less than 6 inches where not greater than 9 feet in height; where gable construction is used, an additional 6 feet is permitted to the peak of the gable (R606.4.1). - Rough, random or coursed rubble stone masonry walls: minimum 16 inches (R606.4.2). - Unreinforced solid masonry parapets: not less than 8 inches thick, height not to exceed four times thickness; unreinforced hollow unit parapets: not less than 8 inches thick, height not to exceed three times thickness (R606.4.4).

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

Key Concepts

Materials and corrosion protection (R603.2.1, R603.2.2) - Load-bearing cold-formed steel framing members shall be cold formed to shape from structural-quality sheet steel complying with ASTM A 1003: Structural Grades 33 Type H and 50 Type H. - Load-bearing framing shall have a metallic coating complying with ASTM A 1003 and one of the following: a minimum of G 60 in accordance with ASTM A 653, or a minimum of AZ 50 in accordance with ASTM A 792. - Identification labeling must show manufacturer's identification, minimum base steel thickness, minimum coating designation, and minimum yield strength (ksi) (R603.2.4).

Arkansas Remodeling, Renovations, Restoration, Alterations – Residential Exam | 3 questions (10%) Source: International Residential Code 2015, Chapter 6 (Wall Construction), with supporting material from Chapters 5 and 8.

Key Concepts

Materials (R602.1) - Structural composite lumber: capacities established and monitored in accordance with ASTM D 5456 (R602.1.5). - Glued-laminated timbers: ANSI/AITC A190.1 and ASTM D 3737 (R602.1.3); structural log members: ICC 400 (R602.1.4); cross-laminated timber: ANSI/APA PRG 320 (R602.1.6); particleboard: ANSI A208.1 (R602.1.9); fiberboard: ASTM C 208 (R602.1.10); wood structural panels: DOC PS 1, DOC PS 2, or if made in Canada, CSA O437 or CSA O325 (R602.1.8). - End-jointed lumber may be used interchangeably with solid-sawn members of the same species and grade, but in an assembly required to have a fire-resistance rating it must carry "Heat Resistant Adhesive" or "HRA" in its grade mark (R602.1.2; same…

Key Concepts

Air leakage testing (Mandatory). The building or dwelling unit shall be tested and verified as having an air leakage rate not exceeding five air changes per hour in Climate Zones 1 and 2, and three air changes per hour in Climate Zones 3 through 8, tested per ASTM E 779 or ASTM E 1827 and reported at 0.2 inches w.g. (50 Pascals) — N1102.4.1.2 (R402.4.1.2). Arkansas counties fall in Zones 3A and 4A, so the 3 ACH limit applies. Testing is performed any time after creation of all penetrations of the thermal envelope; during the test, exterior windows/doors and fireplace and stove doors are closed but not sealed, dampers closed but not sealed, interior doors open, heating and cooling systems off, and supply and return registers fully open.

Arkansas Remodeling, Renovations, Restoration, Alterations – Residential Exam All citations are to the 2015 International Residential Code

Key Concepts

Garage-to-dwelling passage doors (R302.5.1) Openings between a private garage and the residence shall be equipped with one of the following: - Solid wood doors not less than 1-3/8 inches thick, or - Solid or honeycomb-core steel doors not less than 1-3/8 inches thick, or - 20-minute fire-rated doors.

Each must have a self-closing device. Openings directly into a sleeping room are prohibited.

Required egress door (R311.2) Must be side-hinged, with a clear width of not less than 32 inches measured between the face of the door and the stop with the door open 90 degrees, and a clear height of not less than 78 inches.

Arkansas Remodeling, Renovations, Restoration, Alterations – Residential Exam 3 questions (10% of exam) — 2015 International Residential Code

Key Concepts

Fastener penetration into framing. Type W or Type S screws attaching gypsum board to wood framing shall penetrate the wood not less than 5/8 inch (minimum). The 3/8-inch figure applies to penetration into thin cold-formed steel framing, and 7/16 inch applies to the wood structural panel facing of structural insulated panels. (R702.3.5.1)

General application. Supports and fasteners used to attach gypsum board and gypsum panel products shall comply with Table R702.3.5. Gypsum board and gypsum panel products shall be applied at right angles or parallel to framing members. All edges and ends shall occur on the framing members, except those edges and ends perpendicular to the framing members. **Interior gypsum board shall not be installed where it is directly…

Key Concepts

Medical services and first aid (§ 1926.50) - The employer must insure the availability of medical personnel for advice and consultation on matters of occupational health (§ 1926.50(a)), and provisions must 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 holding a valid first-aid certificate from the U.S. Bureau of Mines, the American Red Cross, or equivalent training that can be verified by documentary evidence must be available at the worksite to render first aid (§ 1926.50(c)). - First aid supplies must be easily accessible (§ 1926.50(d)(1)). Kit contents must be in a **weatherproof container with individual sealed packages for each…

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

Key Concepts

Scope of the code (R101.2). The International Residential Code for One- and Two-family Dwellings applies to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures not more than three stories above grade plane in height. Structures beyond this scope fall under the International Building Code.

Appendices (R102.5). Provisions in the appendices shall not apply unless specifically referenced in the adopting ordinance.

Conflicts (R102.1). Where a general requirement conflicts with a specific requirement, the specific requirement applies. Where different sections specify different materials, methods or requirements, the most restrictive governs.