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| Section | Objectives |
|---|---|
| Fire Protection and Fire-Resistance | - Noncombustible protection and protection of mass timber elements - Fire-resistance requirements - Fire protection systems and related provisions |
| Tall Mass Timber Building Code Provisions | - International Building Code requirements for tall mass timber construction - Types IV-A, IV-B and IV-C construction - Mass timber materials and construction requirements |
| Structural Inspection | - Structural loads and related code requirements - Mass timber structural elements - Connections and fastening systems |
| Code Compliance and Related Requirements | - Sound transmission requirements - Energy code requirements applicable to mass timber buildings - Documentation and verification of compliance |
| Special Inspection Requirements | - Inspector duties and responsibilities - Special inspection procedures for tall mass timber buildings - Inspection of connections and protective materials |
| Construction Fire Safety | - Protection of mass timber during construction - International Fire Code requirements - Construction-phase fire safety requirements |
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NEW QUESTION # 16
Given: A building of Type IV-B construction is designed to be greater than six stories above grade plane.
At least one layer of required noncombustible protection shall be installed on all of the following building elements except _____ on all floor levels more than four levels below active mass timber construction before erecting additional floor levels during construction.
Answer: D
Explanation:
The intended code exception is shafts and vertical exit enclosures , making option B correct. The governing construction-phase provision is 2021 IFC Section 3303.5, which applies to buildings of Types IV-A, IV-B, and IV-C designed to exceed six stories above grade plane.
Where Section 602.4 of the IBC requires noncombustible protection, at least one layer must be installed on building elements located on floor levels-including mezzanines-more than four levels below active mass timber construction before additional floor levels can be erected. The provision is intended to prevent a tall mass timber project from accumulating an excessive number of substantially unprotected combustible stories during erection.
Section 3303.5 expressly states that shafts and vertical exit enclosures are not considered part of the active mass timber construction for application of this construction-progress requirement. Therefore, B is the examination answer.
Mezzanines are expressly included in the protected-level requirement. Required protection for floors, walls, and ceilings under IBC Section 602.4 progresses with construction subject to the IFC provision. The same section also requires standpipes, an approved water supply for fire department operations, and timely installation of required exterior wall coverings.
References/Topics: 2021 IFC Section 3303.5; 2021 IBC Section 602.4; fire safety during construction of tall mass timber buildings.
NEW QUESTION # 17
Fire-resistance ratings of members and assemblies can be established by all of the following except:
Answer: B
Explanation:
ASTM E84 cannot be used to establish the hourly fire-resistance rating of a structural member or assembly.
Therefore, option B is correct.
ASTM E84 evaluates surface-burning characteristics , principally flame-spread and smoke-developed indices. Those measurements characterize how a material ' s exposed surface behaves when subjected to the standard tunnel test. They do not demonstrate that a wall, floor, roof, beam, column, or structural assembly will maintain integrity and structural performance for one, two, or three hours.
Fire-resistance ratings are instead established through the methods recognized by the IBC, including standard fire testing-principally ASTM E119 or UL 263-prescriptive rated construction provided by Section 721, and calculated fire-resistance procedures under Section 722. The code also recognizes appropriately documented approved designs and other approved methods within the Section 703 framework.
This distinction is particularly important in mass timber work because ASTM E84 may appear elsewhere in the code for flame-spread limitations on materials, but an acceptable E84 result does not establish structural fire endurance.
The special inspector must determine which approved fire-resistance methodology applies and verify that the installed assembly precisely reflects that design.
References/Topics: 2021 IBC Sections 703, 721 and 722; ASTM E119; UL 263; distinction between fire resistance and ASTM E84 surface-burning testing.
NEW QUESTION # 18
For CLT, which of the following standards is used for the determination of bond line shear test for adhesives?
Answer: B
Explanation:
ANSI/APA PRG 320 is the governing product standard for performance-rated cross-laminated timber, including adhesive qualification, bond integrity, manufacturing quality control, and required product identification. Accordingly, option D is correct.
Bond-line performance is critical because CLT panels depend on structural adhesive to transfer shear forces between laminations and maintain composite action. PRG 320 establishes qualification and quality-assurance requirements intended to verify that adhesive bonds remain structurally reliable and resist delamination or inadequate bond development. Testing and manufacturing controls under this standard address the completed CLT product rather than treating the adhesive as an isolated material.
AITC 113 concerns dimensional tolerances and related requirements for structural glued-laminated timber rather than CLT bond-line shear qualification. ASTM C557 addresses adhesives for ceramic tile and is unrelated to structural timber manufacture. ANSI 117 is not the governing CLT manufacturing standard.
During inspection, the special inspector ordinarily does not reproduce factory bond-line tests on-site. Instead, the inspector verifies the CLT manufacturer's identification, certification marks, panel grade, layup designation, and conformance with PRG 320 and the approved construction documents.
References/Topics: 2021 IBC Section 2303.1.4; ANSI/APA PRG 320; CLT adhesive-bond qualification and manufacturing quality assurance.
NEW QUESTION # 19
Regarding water supply for the protection of buildings under construction, when combustible building materials of the building under construction are delivered to a site, the minimum fire flow provided shall be
_____ gpm.
Answer: C
Explanation:
The minimum required fire flow is 500 gallons per minute. Therefore, option C is correct.
Under 2021 IFC Section 3313.2, an approved water supply must be available when combustible building materials for the building under construction are delivered to the project site. The hydrant supplying the required flow must be located within the prescribed distance of the combustible materials as measured along an approved fire apparatus access route. Where one hydrant cannot provide coverage to all combustible material locations, additional hydrants are required.
The 500-gpm requirement is the initial minimum associated with the delivery of combustible building materials. It should not be confused with the potentially greater fire-flow requirements applicable after vertical construction of a Type III, IV, or V building begins. Depending on fire separation distance and the building's calculated final fire-flow demand, a larger supply may be required under subsequent provisions.
Options A and B provide inadequate suppression capacity. Option D is not the baseline amount prescribed for the condition stated in the question. Inspectors and site safety personnel should verify that the water source is operational and accessible before substantial quantities of mass timber arrive on-site.
References/Topics: 2021 IFC Sections 3313.1 and 3313.2; construction-site water supply and combustible building materials.
NEW QUESTION # 20
The building owner shall be responsible for each of the following for fire safety during construction except:
Answer: A
Explanation:
Option C is not an IFC requirement. The 2021 IFC requires inspection records to be maintained on-site, but it does not require those records to be secured in a fire- and water-resistant safe.
Section 3303.2 requires the owner to designate a site safety director. Section 3303.3 then makes that director responsible for completing a daily fire safety inspection of the project site. Every day, building and outdoor construction areas must be evaluated against the prescribed fire-safety inspection items.
The results of each inspection must be documented and retained on-site until a certificate of occupancy has been issued . The records must also be immediately available at the site for presentation to the fire code official upon request. Options A, B, and D therefore accurately reflect the code requirements.
The daily inspection program covers practical hazards such as hot work, temporary heating, combustible debris, temporary electrical wiring, hazardous-material storage, fire apparatus access, hydrants, fire department connections, standpipe availability, and portable extinguishers.
For tall mass timber projects, this documentation is particularly important because substantial combustible construction may be present before permanent fire protection systems are complete.
References/Topics: 2021 IFC Sections 3303.2 and 3303.3; site safety director; daily fire-safety inspection and documentation.
NEW QUESTION # 21
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