What is roof sheathing?

Roof sheathing is a layer of boards or plywood that is laid over the roof framing to provide a stable base for the roof covering. It helps to distribute the weight of the roof evenly across the structure and can also provide additional strength and support.

Roof sheathing is typically made from materials such as plywood, oriented strand board (OSB), or wooden boards. Plywood is the most commonly used material for roof sheathing because of its strength, durability, and resistance to moisture. OSB is another popular option, as it is cheaper than plywood but still offers good strength and stability.

The thickness of the roof sheathing will depend on the type of roof covering being used and the local building codes. Thicker sheathing is generally recommended for areas that experience high winds or heavy snow loads.

Proper installation of roof sheathing is essential to ensure a leak-proof and long-lasting roof. It should be fastened securely to the roof framing with nails or screws, and seams should be staggered and sealed to prevent water infiltration.

In addition to providing structural support, roof sheathing also serves as a base for attaching roof coverings such as shingles, metal roofing, or tiles. It is an important component of the roofing system that plays a key role in protecting the home from the elements.