A long gypsum board corridor ceiling has no relief in a continuous plane. What maximum control-joint spacing is commonly used for large gypsum board expanses?
Correct Answer
C) 30 ft
Gypsum board control-joint guidance commonly limits large continuous expanses to about 30 ft between control joints unless the design documents require closer spacing. Other choices are either overly tight or too wide.
Why This Is the Correct Answer
Gypsum board control-joint guidance commonly limits large continuous expanses to about 30 ft between control joints unless the design documents require closer spacing. Other choices are either overly tight or too wide.
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