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Understanding the difference between roof decking and sheathing can help you make informed decisions for your roofing project. Both terms are often used interchangeably in the construction and roofing industry, yet they refer to different components of a roof system. In this post, we delve deeper into their distinctions and unique roles in your roof.
Roof Decking
Roof decking essentially acts as the foundation for your roof. It’s the layer that sits between the structural components of your roof—such as the trusses and joists—and the insulation and waterproofing layers. Made primarily from materials like plywood or oriented strand board (OSB), roof decking plays a crucial role in providing structural integrity to your roof. It’s what your shingles or other roofing materials are attached to.
Roof Sheathing
While roof sheathing is sometimes used synonymously with decking, the term more specifically refers to the panels made of plywood or OSB that are affixed to the rafters or joists to cover your home. Sheathing serves multiple purposes: It provides a base for the roofing materials and adds rigidity to the roof structure, contributing to your home’s resistance to wind and other loading forces.
Key Differences Explained
- Material Composition and Installation – One of the main differences between the two is how they are installed and what materials are used. While both can be made from similar materials like plywood or OSB, the thickness and the way they are fixed onto the roof can vary.
- Function and Purpose – Decking provides the structural foundation and base for the roofing material (shingles, metal, etc.), while sheathing adds a layer of protection and rigidity to the roof system.
- Building Codes and Standards – In Richmond, BC, building codes may have specific requirements regarding the type, thickness, and method of installation for roof decking and sheathing. This underscores the importance of working with a local roofing contractor who is familiar with these requirements.
When you choose Crown Roofing LTD for your roofing needs, you’re choosing quality workmanship and peace of mind. We prioritize open, honest communication with all our clients so you’ll know what to expect every step of the way. Call us today at (604) 370-6288 or visit our contact page to schedule an appointment.
