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Sheet Metal
Sheet Metal Worker Red Seal Certification
Metal Roofing & Flashing
Knowledge Check
Metal Roofing & Flashing
Knowledge Check
Knowledge Check
1 / 10
Why must wall-to-roof flashing always be a two-piece system (base + counter)?
A
Single-piece flashing corrodes faster than two-piece
B
Two pieces use less total material than one large piece
C
The roof and wall move independently, and a single piece cannot maintain a seal
D
Building codes prohibit single-piece flashing on all slopes
Check Answer
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