Which gauge is considered standard for exterior flashing?

Which gauge is considered standard for exterior flashing?

• A. 24
• B. 26
• C. 28
• D. 30

Answer: (B)

Gauge thickness for exterior flashing balances strength and workability. Exterior flashing must withstand weather and installation handling while still bending smoothly around corners and joints. If the metal is too thick, it becomes stiff, harder to form, and more costly to install. If it’s too thin, it can dent or tear during handling and over time, reducing its effectiveness. The standard choice sits in the middle, giving enough rigidity to resist damage and to shed water, yet being flexible enough to shape neatly around openings and details. That balanced thickness is widely used in typical exterior flashing installations, which is why it’s considered the standard.

Gauge thickness for exterior flashing balances strength and workability. Exterior flashing must withstand weather and installation handling while still bending smoothly around corners and joints. If the metal is too thick, it becomes stiff, harder to form, and more costly to install. If it’s too thin, it can dent or tear during handling and over time, reducing its effectiveness. The standard choice sits in the middle, giving enough rigidity to resist damage and to shed water, yet being flexible enough to shape neatly around openings and details. That balanced thickness is widely used in typical exterior flashing installations, which is why it’s considered the standard.