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Tall Mass Timber Buildings Special Inspector
93 Exam – Practice Questions & Study Guide
Questions & Answers VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
Tall Mass Timber Buildings Special Inspector 93 Exam – Practice Questions & Study Guide
Exam Overview
Category Details
Certifying Body International Code Council (ICC)
Exam Code 93
Questions 70
Time Limit 2.5 hours
Passing Score 70% minimum (49/70 correct)
Prerequisite ICC Special Inspector (General) certification required
Foundational Standard 2021 International Building Code (IBC)
Exam Coverage Summary
The ICC Tall Mass Timber (TMT) Special Inspector certification validates expertise in inspecting
mass timber construction under the 2021 IBC . Key domains include :
2021 IBC Type IV Construction (A, B, C, HT)
• Height Limits: Type IV-A up to 270 ft (18 stories); Type IV-B up to 180 ft (12 stories);
Type IV-C up to 85 ft (6 stories)
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• Encapsulation Requirements: Type IV-A requires full noncombustible protection; IV-B
partial; IV-C limited
• Fire-Resistance Ratings (FRR): Primary structural frame in Type IV-A requires 3-hour
FRR
Mass Timber Materials
• CLT: ANSI/APA PRG 320 standard
• Glulam: ANSI A190.1 standard
• NLT, DLT, connection systems
Fire Protection & Encapsulation
• Charring Rate: Standardized design char rate is 1.5 inches per hour
• Gypsum Board Protection: Provides thermal barrier delaying ignition
• Intumescent Coatings: Swell when exposed to heat, protecting wood
Special Inspection Duties
• IBC Chapter 17 outlines responsibilities and scope
• Statement of Special Inspections defines inspection scope and duties
• Daily reporting including weather conditions, quantity installed, and non-conformances
Structural Systems
• Lateral Load Resistance: Timber shear walls or cores
• Rocking Walls: Post-tensioned CLT panels for self-centering after seismic events
• Spline Connections: Transfer shear forces between adjacent CLT panels
Practice Questions
Section 1: Role, Responsibilities & Statement of Special Inspections
Question 1
What is the primary role of a Tall Mass Timber Special Inspector during construction?
A) Design structural elements for mass timber buildings
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B) Verify compliance with building codes, standards, and project specifications related to mass
timber
C) Manage construction schedules and budgets
D) Conduct fire safety drills for occupants
Answer: B
Rationale: The primary role of the special inspector is to verify that mass timber construction
complies with applicable codes, standards, and project specifications. This is a verification role,
not design or management .
Question 2
Which document typically outlines the scope and duties of a Tall Mass Timber Special
Inspector?
A) Construction contract
B) Statement of Special Inspections
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C) Building occupancy permit
D) Fire safety plan
Answer: B
Rationale: The Statement of Special Inspections defines the scope and duties of special
inspectors, including the required frequency and type of inspections .
Question 3
Which IBC chapter contains the special inspection requirements for tall mass timber
construction?
A) Chapter 16 (Structural Design)
B) Chapter 17 (Structural Tests and Special Inspections)
C) Chapter 23 (Wood)
D) Chapter 7 (Fire and Smoke Protection Features)
Answer: B
Tall Mass Timber Buildings Special Inspector
93 Exam – Practice Questions & Study Guide
Questions & Answers VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
Tall Mass Timber Buildings Special Inspector 93 Exam – Practice Questions & Study Guide
Exam Overview
Category Details
Certifying Body International Code Council (ICC)
Exam Code 93
Questions 70
Time Limit 2.5 hours
Passing Score 70% minimum (49/70 correct)
Prerequisite ICC Special Inspector (General) certification required
Foundational Standard 2021 International Building Code (IBC)
Exam Coverage Summary
The ICC Tall Mass Timber (TMT) Special Inspector certification validates expertise in inspecting
mass timber construction under the 2021 IBC . Key domains include :
2021 IBC Type IV Construction (A, B, C, HT)
• Height Limits: Type IV-A up to 270 ft (18 stories); Type IV-B up to 180 ft (12 stories);
Type IV-C up to 85 ft (6 stories)
,Page 2 of 169
• Encapsulation Requirements: Type IV-A requires full noncombustible protection; IV-B
partial; IV-C limited
• Fire-Resistance Ratings (FRR): Primary structural frame in Type IV-A requires 3-hour
FRR
Mass Timber Materials
• CLT: ANSI/APA PRG 320 standard
• Glulam: ANSI A190.1 standard
• NLT, DLT, connection systems
Fire Protection & Encapsulation
• Charring Rate: Standardized design char rate is 1.5 inches per hour
• Gypsum Board Protection: Provides thermal barrier delaying ignition
• Intumescent Coatings: Swell when exposed to heat, protecting wood
Special Inspection Duties
• IBC Chapter 17 outlines responsibilities and scope
• Statement of Special Inspections defines inspection scope and duties
• Daily reporting including weather conditions, quantity installed, and non-conformances
Structural Systems
• Lateral Load Resistance: Timber shear walls or cores
• Rocking Walls: Post-tensioned CLT panels for self-centering after seismic events
• Spline Connections: Transfer shear forces between adjacent CLT panels
Practice Questions
Section 1: Role, Responsibilities & Statement of Special Inspections
Question 1
What is the primary role of a Tall Mass Timber Special Inspector during construction?
A) Design structural elements for mass timber buildings
,Page 3 of 169
B) Verify compliance with building codes, standards, and project specifications related to mass
timber
C) Manage construction schedules and budgets
D) Conduct fire safety drills for occupants
Answer: B
Rationale: The primary role of the special inspector is to verify that mass timber construction
complies with applicable codes, standards, and project specifications. This is a verification role,
not design or management .
Question 2
Which document typically outlines the scope and duties of a Tall Mass Timber Special
Inspector?
A) Construction contract
B) Statement of Special Inspections
, Page 4 of 169
C) Building occupancy permit
D) Fire safety plan
Answer: B
Rationale: The Statement of Special Inspections defines the scope and duties of special
inspectors, including the required frequency and type of inspections .
Question 3
Which IBC chapter contains the special inspection requirements for tall mass timber
construction?
A) Chapter 16 (Structural Design)
B) Chapter 17 (Structural Tests and Special Inspections)
C) Chapter 23 (Wood)
D) Chapter 7 (Fire and Smoke Protection Features)
Answer: B
