What is the role of counterflashing at a roof-to-wall condition?
Correct Answer
B) To cover and protect base flashing while shedding water over it
Counterflashing covers and protects base flashing and directs water over it so the joint remains water-shedding. Other choices confuse flashing with structural support, underlayment, or insulation attachment.
Why This Is the Correct Answer
Counterflashing covers and protects base flashing and directs water over it so the joint remains water-shedding. Other choices confuse flashing with structural support, underlayment, or insulation attachment.
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