Oregon Construction Contractors (CCB) Practice Test

Which of the following is a requirement for corrosion-resistant flashing?

1. Must match the color of the roofing material

2. Must be installed only at door frames

3. Must be used in specified locations only

4. Must be reinforced with steel

The correct answer is: Must be used in specified locations only

Corrosion-resistant flashing is essential in construction to prevent water infiltration and protect various structural elements from moisture damage. The requirement for flashing to be used in specified locations emphasizes the necessity of placing it where it will be most effective, such as around roof penetrations, walls, and foundations. This ensures optimal performance and longevity, as certain areas are more susceptible to water exposure and potential corrosion. The other options do not accurately reflect the requirements for corrosion-resistant flashing. For instance, matching the color of the roofing material is more of an aesthetic concern than a functional requirement. Installing flashing only at door frames limits its purpose, as flashing should be strategically placed in various locations based on design and exposure to elements. Reinforcing with steel may not be a requirement and can introduce unnecessary complexity or cost to the flashing installation when materials designed for corrosion resistance are already sufficient. Thus, focusing on specified locations for the installation of corrosion-resistant flashing is crucial for effective waterproofing and overall building integrity.