Date
Inquiry
Is "greenboard" drywall an acceptable option for meeting ID 2.1, part (c), even if it has a treated paper facing?
Ruling
No; the nonpaper-faced backer board prerequisite in ID 2.1 part (c) cannot be satisfied with Greenboard. Cement board, fiber cement board, fiberglass-reinforced board, or cement plaster are acceptable alternatives.
Updated 10/1/13 for rating system applicability.
Internationally Applicable
On
Campus Applicable
Off