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What is the typical cause for screw pops in drywall?

A. Insufficient joint compound
B. Excessive moisture
C. Incorrect screw length
D. Poor ventilation

Answer :

Final answer:

The typical cause for screw pops in drywall is incorrect screw length. Insufficient joint compound, excessive moisture, and poor ventilation can contribute to the weakening of the drywall, but they are not the primary causes of screw pops. Hence, option C is the correct answer.

Explanation:

The typical cause for screw pops in drywall is incorrect screw length. When screws are too long, they can penetrate through the drywall and create a bump or pop. This usually occurs when screws are not properly aligned with the framing behind the drywall.

Insufficient joint compound, excessive moisture, and poor ventilation can contribute to the weakening of the drywall, but they are not the primary causes of screw pops.