Roof Decking vs. Sheathing: What’s the Difference?

“Roof decking” and sheathing” are often interchanged by roofers during discussion. However, there are distinct differences between the two. In today’s post from Ken Morton & Sons LLC, you’ll get clarification about these differences to learn more about your roof and its overall condition.

More About Roof Decking

Roof decking, also known as roof sheathing, serves as the foundation on which all other roofing materials are laid. It is the layer directly attached to the roof’s structural trusses or rafters and it provides a flat, sturdy surface for the installation of shingles, tiles, or other roofing materials. A well-installed roof deck is essential for the longevity and durability of the roof.

The most common materials used for roof decking include plywood and oriented strand board (OSB). These materials are chosen for their ability to bear significant loads and withstand environmental elements. The choice between plywood and OSB often depends on the contractor’s preference and the specific requirements of the roofing project.

The Role of Sheathing in Roofing

While “sheathing” can refer to the same layer as “decking” in the context of roofing, it is also a term used more broadly in construction to describe the protective layer applied over the structural components of a building. This includes walls and floors, in addition to roofs. Roof sheathing is crucial for creating a solid base for roofing materials and for protecting a home against water damage and other external elements.

Sheathing also plays a critical role in ensuring that homes meet building codes and regulations. Proper sheathing helps to distribute forces and weights evenly across the roof, preventing sagging and structural damage over time.

Differences Between the Two

The main difference between roof decking and sheathing lies in their definition and application. Roof decking is a term specifically used for describing the layer on which roofing materials are placed. In contrast, sheathing can refer to a similar layer but is used in a broader sense within the construction industry, including walls and floors.

Another subtle difference lies in the materials used and the specific purpose each serves in the architectural integrity and protection of the building. While both aim to provide a solid base for roofing materials and protect against environmental elements, the choice of material and installation technique may vary depending on the particular needs of the roof or other parts of the building.

Importance of Proper Installation

Choosing the right materials for roof decking and ensuring proper sheathing installation are crucial steps in safeguarding the home against the elements. It is essential to work with experienced roofing and siding specialists like Ken Morton & Sons LLC, who understand the local climate and building codes.

Professional installation ensures that your roof decking and sheathing are correctly positioned and secured, offering maximum protection and longevity for your roof. This not only helps in maintaining the structural integrity of your home but also in optimizing energy efficiency and minimizing the risk of leaks and water damage.

If you need either roof decking or sheathing replaced, you can always count on us at Ken Morton & Sons LLC. Dial (856) 582-8800 or fill out this contact form to get an estimate.