B2 Commercial Building Inspector Quiz

Fireblocking shall be installed within concealed spaces of exterior wall coverings and other exterior architectural elements where permitted to be of combustible construction as specified in Section 1405 or where erected with combustible frames. Fireblocking shall be installed at maximum intervals of 20 feet (6096 mm) in either dimension so that there will be no concealed space exceeding 100 square feet (9.3 m2) between fireblocking. Where wood furring strips are used, they shall be of approved wood of natural decay resistance or preservative-treated wood. If noncontinuous, such elements shall have closed ends, with not less than 4 inches (102 mm) of separation between sections. Exceptions: 1. Fireblocking of cornices is not required in single-family dwellings. Fireblocking of cornices of a two-family dwelling is required only at the line of dwelling unit separation. 2. Fireblocking shall not be required where the exterior wall covering is installed on noncombustible framing and the face of the exterior wall covering exposed to the concealed space is covered by one of the following materials: 2.1. Aluminum having a minimum thickness of 0.019 inch (0.5 mm). 2.2. Corrosion-resistant steel having a base metal thickness not less than 0.016 inch (0.4 mm) at any point. 2.3. Other approved noncombustible materials. 3. Fireblocking shall not be required where the exterior wall covering has been tested in accordance with, and complies with the acceptance criteria of, NFPA 285. The exterior wall covering shall be installed as tested in accordance with NFPA 285. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 718 Concealed Spaces. 718.2 Fireblocking. 718.2.6 Exterior wall coverings.

MASONRY UNIT. Hollow. A masonry unit whose net cross-sectional area in any plane parallel to the load-bearing surface is less than 75 percent of its gross cross-sectional area measured in the same plane. Solid. A masonry unit whose net cross-sectional area in every plane parallel to the load-bearing surface is 75 percent or more of its gross cross-sectional area measured in the same plane. 2024 IBC – Chapter 2, Definitions. Section 202, Definitions.

Residential Group R-3 occupancies where the occupants are primarily permanent in nature and not classified as Group R-1, R-2, R-4 or I, including: Buildings that do not contain more than two dwelling units Care facilities that provide accommodations for five or fewer persons receiving care Congregate living facilities (nontransient) with 16 or fewer occupants Boarding houses (nontransient) Convents Dormitories Emergency services living quarters Fraternities and sororities Monasteries Congregate living facilities (transient) with 10 or fewer occupants Boarding houses (transient) Lodging houses with five or fewer guest rooms Hotels (nontransient) with five or fewer guestrooms Motels (nontransient) with five or fewer guestrooms 2024 IBC – Chapter 3, Occupancy Classification and Use. Section 310, Residential Group R. 310.4 Residential Group R-3.

Every required stairway serving floor levels more than 30 feet (9144 mm) below the finished floor of its level of exit discharge shall comply with the requirements for a smokeproof enclosure as provided in Section 1023.12. 2024 IBC – Chapter 4, Special Detailed Requirements Based on Occupancy and Use. Section 405, Underground Buildings. 405.7 Means of egress. 405.7.2 Smokeproof enclosure.

Protection by a draft curtain and closely spaced sprinklers in accordance with NFPA 13 shall be permitted where the area of the vertical opening between stories does not exceed twice the horizontal projected area of the escalator. In other than Groups B and M, this application is limited to openings that do not connect more than four stories. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 712 Vertical Openings. 712.1 General. 712.1.3 Escalator openings. 712.1.3.1 Opening size.

The maximum deflection limit for roof members supporting a plaster or stucco ceiling due to seismic or wind loads is l/360. The maximum deflection limit for roof members supporting a nonplaster or stucco ceiling due to seismic or wind loads is l/240. The maximum deflection limit for roof members not supporting a ceiling is l/180. 2024 IBC – Chapter 16, Structural Design. Section 1604 General Design Requirements. 1604.3 Serviceability. Table 1604.3 Deflection Limits.

3. Fire partitions serving as a corridor wall shall be permitted to terminate at the upper membrane of the corridor ceiling assembly where the corridor ceiling is constructed as required for the corridor wall. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 708 Fire Partitions. 708.4 Continuity.

Loads shall be in accordance with Chapter 16 and shall not exceed the following: 1. Average dead loads shall not exceed 15 psf (718 N/m2) for combined roof and ceiling, exterior walls, floors and partitions. Exceptions: 1. Subject to the limitations of Section 2308.10.10, stone or masonry veneer up to the less of 5 inches (127 mm) thick or 50 pounds per square foot (2395 N/m2) and installed in accordance with Chapter 14 is permitted to a height of 30 feet (9144 mm) above a noncombustible foundation, with an additional 8 feet (2439 mm) permitted for gable ends. 2. Concrete or masonry fireplaces, heaters and chimneys shall be permitted in accordance with the provisions of this code. 2. Live loads shall not exceed 40 psf (1916 N/m2) for floors. Exception: Live loads for concrete slab-on-ground floors in Risk Categories I and II shall be not more than 125 psf (5985 N/m2). 3. Allowable stress design ground snow load, pg(asd), shall not exceed 50 psf (2395 N/m2 ). 4. Where design for tornado loads is required, tornado loads on the main windforce-resisting system and all components and cladding shall not exceed the corresponding wind loads on these same elements . 2024 IBC – Chapter 23, Wood. Section 2308 Conventional Light-Frame Construction. 2308.2 Limitations. 2308.2.3 Allowable loads.

Connections depending on joist hangers or framing anchors, ties and other mechanical fastenings not otherwise covered are permitted where approved. The vertical load-bearing capacity, torsional moment capacity and deflection characteristics of joist hangers shall be determined in accordance with ASTM D7147. 2024 IBC – Chapter 23, Wood. Section 2304 General Construction Requirements. 2304.10 Connectors and fasteners. 2304.10.4 Joist hangers and framing anchors.

Storage Group S-2 occupancies include, among others, buildings used for the storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are permitted to have a negligible amount of plastic trim, such as knobs, handles or film wrapping. Group S-2 storage uses shall include, but not be limited to, storage of the following: Asbestos Beverages up to and including 20-percent alcohol Cement in bags Chalk and crayons Dairy products in nonwaxed coated paper containers Dry cell batteries Electrical coils Electrical motors Empty cans Food products Foods in noncombustible containers Fresh fruits and vegetables in nonplastic trays or containers Frozen foods Glass Glass bottles, empty or filled with noncombustible liquids Gypsum board Inert pigments Ivory Meats Metal cabinets Metal desks with plastic tops and trim Metal parts Metals Mirrors Oil-filled and other types of distribution transformers Public parking garages, open or enclosed Porcelain and pottery Stoves Talc and soapstones Washers and dryers 2024 IBC – Chapter 3, Occupancy Classification and Use. Section 311, Storage groups. 311.3 Low-hazard storage Group S-2.

Bearing and exterior wall studs shall be capped with double top plates installed to provide overlapping at corners and at intersections with other partitions. End joints in double top plates shall be offset not less than 48 inches (1219 mm) and shall be nailed in accordance with Table 2304.10.2. Plates shall be a nominal 2 inches (51 mm) in depth and have a width not less than the width of the studs. Exception: A single top plate is permitted, provided that the plate is adequately tied at corners and intersecting walls by not less than the equivalent of 3-inch by 6-inch (76 mm by 152 mm) by 0.036-inch thick (0.914 mm) galvanized steel plate that is nailed to each wall or segment of wall by six 8d [2-1/2” × 0.113” (64-mm by 2.87 mm)] box nails or equivalent on each side of the joint. For the butt-joint splice between adjacent single top plates, not less than the equivalent of a 3-inch by 12-inch (76 mm by 304 mm) by 0.036-inch-thick (0.914 mm) galvanized steel plate that is nailed to each wall or segment of wall by 12 8d [2-1/2-inch × 0.113-inch (64 mm by 2.87 mm)] box nails on each side of the joint shall be required, provided that the rafters, joists or trusses are centered over the studs with a tolerance of not more than 1 inch (25 mm). The top plate shall not be required over headers that are in the same plane and in line with the upper surface of the adjacent top plates and are tied to adjacent wall sections as required for the butt joint splice between adjacent single top plates. Where bearing studs are spaced at 24-inch (610 mm) intervals, top plates are less than two 2-inch by 6- inch (51 mm by 152 mm) or two 3-inch by 4-inch (76 mm by 102 mm) members and the floor joists, floor trusses or roof trusses that they support are spaced at more than 16-inch (406 mm) intervals, such joists or trusses shall bear within 5 inches (127 mm) of the studs beneath or a third plate shall be installed. 2024 IBC – Chapter 23, Wood. Section 2308 Conventional Light-Frame Construction. 2308.9 Wall construction. 2308.9.1 Stud size, height and spacing. Table 2308.9.3 Plates and sills. 2308.9.3.2 Top plates.

The suggestions in Table 16.1, adapted from “Guide for Concrete Floor and Slab Construction (ACI 302.1R),” can be used for proper construction of concrete floors and slabs on ground. ICC Concrete Manual 2024/2021 – Chapter 16, Slabs-on-Ground. 16.1 The Slab-on-Ground. Table 16.1 Concrete Floor Classifications [Page 350]

The space around a duct penetrating a smoke partition shall be filled with an approved material to limit the free passage of smoke. Air transfer openings in smoke partitions shall be provided with a smoke damper complying with Section 717.3.2.2. Exception: Where the installation of a smoke damper will interfere with the operation of a required smoke control system in accordance with Section 909, approved alternative protection shall be utilized. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 710 Smoke Partitions. 710.8 Ducts and air transfer openings.

Nonclassified roofing is approved material that is not listed as a Class A, B or C roof covering. 2024 IBC – Chapter 15, Roof Assemblies and Rooftop Structures. Section 1505 Fire Classification. 1505.5 Nonclassified roofing.

Floor surfaces shall be of concrete or similar approved noncombustible and nonabsorbent materials. The area of floor used for the parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway. The surface of vehicle fueling pads in motor fuel-dispensing facilities shall be in accordance with Section 406.7.1. Exceptions: 1. Asphalt parking surfaces shall be permitted at ground level for public parking garages and private carports. 2. Slip-resistant, nonabsorbent, interior floor finishes having a critical radiant flux not more than 0.45 W/cm2, as determined by ASTM E648 or NFPA 253, shall be permitted in repair garages. 2024 IBC – Chapter 4, Special Detailed Requirements Based on Occupancy and Use. Section 406, Motor-Vehicle-Related Occupancies. 406.2 Design. 406.2.4 Floor surfaces.