Oregon Construction Contractors (CCB) Practice Test

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What is one of the primary concerns when constructing waterproof deck assemblies?

Proper insulation
Flashing to prevent water intrusion
Using lightweight materials
Maintaining aesthetic appeal

The correct answer is: Flashing to prevent water intrusion

One of the primary concerns when constructing waterproof deck assemblies is the implementation of flashing to prevent water intrusion. Flashing plays a critical role in directing water away from critical areas of the deck structure and ensuring that any water that comes into contact with the surface is effectively channeled away. This is crucial because improper water management can lead to serious issues such as rot, mold, and structural damage over time. Flashing provides a physical barrier that protects vulnerable areas, especially where different building materials meet, thus safeguarding the integrity of the entire deck assembly. This focus on preventing water intrusion is essential for extending the lifespan of the deck and avoiding costly repairs in the future.