Red Seal Roofer Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What does "decking" mean in a roofing context?

The surface layer upon which roofing material is applied

In the roofing context, decking refers to the surface layer upon which roofing material is applied. This decking typically consists of sheets of wood, plywood, or oriented strand board (OSB) that provides a solid base for the roofing materials. It is crucial because it supports the weight of the roofing system and serves as a barrier against moisture intrusion.

Understanding the role of decking is essential for anyone involved in roofing, as it affects the overall durability and performance of the roofing system. Proper installation of decking ensures that the roofing materials adhere well and that the entire system functions as intended, contributing to the integrity of the building.

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A type of roofing material

The framework that supports the roof

The finish layer of the roof

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