PDD - Practice Exam - Construction Type Question

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Dillon Brandt

March 17, 2024 13:38

Can someone explain how the allowable area factor table (Table 506.2) allows 300,000 sq.ft. of building under Type IV construction? In understand that everything else about Type IV HT satisfies the requirements of the client; however, none of the construction types allow for 300,000 sq. ft. of building area except Type I. 

 

 

 

Refer to the exhibit.

A large residential development consists of a 300,000-square-foot, five-story, sprinklered (SM) residential building. The client asks an architect to prepare a low-carbon design with an exposed structure. 

 

Which one of the following construction types should the architect use?

 

A.	Type V
B.	Type IV
C.	Type I

Your answer: C

Correct answer: B

 

CORRECT RESPONSE

Type IV

Per IBC Table 506.2, this construction type allows for the required building area. Heavy timber construction is Type IV HT, low carbon, and can be left exposed depending on the material depth.

 

Section: Codes & Regulations

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  Trenton Jewett March 19, 2024 04:10

  Hi Dillon, 

  if you divide the 300,000 sf by 5 floors you get 60,000 sf which a would allow you to use type IV construction. Also, concrete is not a green material due to the embodied energy used to produce it, we will want to go with B.

  Good luck on your studying!

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  Michael Wentland April 10, 2024 23:55

  None at one level, but multiple levels and sprinklered is fine with Type IV.  Sprinklered is key.  Low carbon are the key words for the correct answer. 

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