What Every Homeowner Should Know About the Different Grades of Roof Sheathing

August 2, 2022

As a homeowner, you might think that choosing a roof is a simple task. But the truth is, there is a lot more to consider than just choosing the color and style that best fits your home’s aesthetic. The type of roof sheathing you choose can make a big impact on the overall strength and durability of your roof. In this article, we will discuss the different grades of roof sheathing that every homeowner should know about.

Roof sheathing is the layer of material that is applied over the roof’s structural framing. It provides a flat and stable surface for the shingles or roofing material to be applied to. It also helps to distribute the weight of the roof evenly, preventing any sagging or buckling. The quality and thickness of your roof sheathing can make a big difference in the overall integrity of your roof.

There are three main grades of roof sheathing: A, B, and C. Each grade has different levels of strength and durability. Grade A is the highest quality and is recommended for most homes. Grade B is still a good choice, but it may not be as durable as Grade A. Grade C is a budget-friendly option that may not last as long as the other grades.

Grade A sheathing is the strongest and most durable option. It is made of high-quality materials, such as plywood or oriented strand board (OSB), and is thicker than the other grades. Grade A sheathing Roof sheathing can support heavier roofing materials, such as tile or slate, and is resistant to moisture and decay. This makes it a great choice for homes in areas with high humidity or frequent rainfall.

Grade B sheathing is still a good choice for most homes. It is also made of plywood or OSB, but it is slightly thinner than Grade A. Grade B sheathing is still strong enough to support most roofing materials, but it may not be suitable for heavy tiles or slates. It is also less resistant to moisture and decay than Grade A, so it may not be the best choice for homes in humid or rainy areas.

Grade C sheathing is the most budget-friendly option. It is made of lower quality materials and is thinner than the other grades. Grade C sheathing is suitable for lighter roofing materials, such as shingles, but may not be strong enough to support heavier materials. It is also more prone to moisture damage and decay, so it may not be the best choice for homes in areas with high humidity or frequent rainfall.

It is important to remember that the grade of roof sheathing you choose will affect the overall durability and lifespan of your roof. Investing in higher quality materials may cost more upfront, but it can save you money in the long run by reducing the need for repairs or replacement.

In addition to choosing the right grade of roof sheathing, there are other factors to consider when selecting a roofing material. The climate in your area, the style of your home, and your budget all play a role in choosing the best roofing material for your home. Consult with a roofing professional to find the best options for your specific situation.

In conclusion, choosing the right grade of roof sheathing is an important decision that every homeowner should take seriously. Grade A sheathing is the strongest and most durable option, while Grade B and C offer varying degrees of strength and durability at a lower cost. Consider your climate, budget, and roofing material options when making your decision. Investing in higher quality materials may cost more upfront, but it can save you money in the long run by reducing the need for repairs or replacement. Consult with a roofing professional to determine the best option for your home.