A balloon-framed chase is open from the floor line into the attic, and no blocking has been installed at the concealed transition. What correction is needed before inspection?
Correct Answer
A) Install approved fireblocking to cut off the concealed vertical and horizontal path
Concealed combustible framing paths require approved fireblocking at prescribed locations to limit fire movement. Other choices leave the path open or use nonapproved material.
Why This Is the Correct Answer
Concealed combustible framing paths require approved fireblocking at prescribed locations to limit fire movement. Other choices leave the path open or use nonapproved material.
Why the Other Options Are Wrong
Option B: Leave it open because the chase is inside the building
The trap in B is Leave it open because the chase is inside the building. That selection is wrong because the choice would not get the project to Install approved fireblocking to cut off the concealed vertical and horizontal path, which is the Fireblocking result verified by the source; Combustible concealed.
Option C: Stuff loose cardboard in the chase, leaving fireblocking unverified
Choice C gives Stuff loose cardboard in the chase. Its specific error: the option does not produce the required Fireblocking outcome, Install approved fireblocking to cut off the concealed vertical and horizontal path.
Option D: The framing crew should wait until drywall scraps fall into the cavity
Choice D (Wait until drywall scraps fall into the cavity) is rejected because it tries to bypass the Fireblocking checkpoint.
Memory Technique
Picture a index tab on the jobsite; fireblocking is solved by the action that leads to Install approved fireblocking to cut off the concealed vertical and horizontal path.
Reference Hint
Open International Building Code 2021 or 2024; use IBC 2021/2024 Section 718.2 fireblocking locations to confirm that Concealed combustible framing paths require approved fireblocking at prescribed locations to limit fire movement.
More NASCLA Questions
Bid instructions require bid security with each sealed bid. Which purpose should the estimator associate with that requirement?
A wood deck surface has 320 sf of coverage. Boards have a 5-1/2 in. actual face width, and the order includes an 8 percent cutting allowance. What linear footage is closest?
Using the dimensions shown for the stabilized construction entrance, what is the plan area?
A reroof area requires 14,720 sf of rigid insulation. Boards are 4 ft by 8 ft, and the order includes 5 percent waste. How many boards are needed?
Two addenda revise the drawings before bid day. What must a responsive bidder normally do with those addenda?
A utility trench is 180 ft long, 3 ft wide, and 7 ft deep with vertical sides inside a trench shield. What excavation volume is required?
A 120 ft long Type C trench is cut with a 4 ft bottom width and a 6 ft depth. If side slopes are 1-1/2 horizontal to 1 vertical, what excavation volume is closest?
A storm pipe run needs 240 ft of bedding, 4 ft wide and 6 in. thick. Including a 10 percent ordering allowance, how many cubic yards of bedding aggregate are needed?
A mass excavation produces 1,180 loose cubic yards of material for off-site disposal. End-dump trucks can haul 18 loose cubic yards per trip. What truck count is required?
An asphalt-shingle roof has a slope of 3:12. Under the IBC low-slope asphalt-shingle provisions, what underlayment arrangement is required?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass