Making Repairs to Damaged Sheathing

  1. Roof repair
  2. Making repairs to the roof deck
  3. Making repairs to damaged sheathing

When it comes to making repairs to damaged sheathing, it is important to understand what needs to be done to ensure a successful repair. Whether it's from hail, wind, snow, or an animal, sheathing damage can cause serious structural problems if not addressed properly and promptly. In this article, we'll discuss the steps necessary for making repairs to damaged sheathing and provide tips for making sure your roof is sound and secure. Damaged sheathing on your roof can cause a variety of problems, including water damage and mold growth. Making repairs to the sheathing is essential to preserving the integrity of your roof and protecting your home from the elements.

The most common types of sheathing are wood, plastic, or metal, and all are important for providing the structure and support of your roof. Repairing damaged sheathing involves inspecting it for additional damage, patching any holes or cracks, and properly sealing the area. When repairing damaged sheathing, you will need a few tools, including a hammer, nails, roofing cement, a putty knife, and a scraper. It's important to take safety precautions when working on your roof, such as wearing sturdy shoes with good grip and using a ladder securely placed on a stable surface. To inspect the sheathing for additional damage, look for any signs of sagging or splitting.

If there are any holes or cracks in the sheathing, these should be filled with roofing cement and then patched with a new piece of wood or metal. To properly seal the repaired area, you can use roofing cement or flashing. Roofing cement is a thick sealant that can be applied to the edges of the repair area to protect against water penetration. Flashing is a thin layer of metal that can be nailed into place around the edges of the repair area for added protection. Examples of materials that can be used in making repairs include roofing nails, roofing cement, flashing, and wood or metal patches. It's important to use the proper materials for each repair job to ensure that it lasts and provides maximum protection against water penetration.

It's also important to make sure that any nails used are rust-proof. In addition to making repairs to damaged sheathing, there are several steps you can take to prevent future damage. Regularly inspecting your roof for any signs of wear or damage is important. You should also ensure that your gutters are cleaned regularly to help prevent water buildup on your roof. Finally, any trees or shrubs near your home should be trimmed back to reduce the risk of branches scraping against the sheathing.

Tools and Materials Needed for Repairs

Making repairs to damaged sheathing requires a few essential tools and materials.

A hammer, pry bar, and utility knife will be necessary for removing the damaged area and installing new sheathing. Roofing nails and roofing cement will be used to secure the sheathing in place. Flashing material is also recommended to cover the newly repaired area and protect it from water damage. For most repairs, you will also need a measuring tape, level, and trowel. These tools will help ensure that the new sheathing is properly aligned and securely fastened.

It may also be helpful to have a saw or drill on hand if additional cutting or drilling is needed.

Tools and materials needed for repairing damaged sheathing:

  • Hammer
  • Pry bar
  • Utility knife
  • Roofing nails
  • Roofing cement
  • Flashing material
  • Measuring tape
  • Level
  • Trowel
  • Saw or drill (optional)

Types of Sheathing

When making repairs to damaged sheathing, it is important to understand the different types of sheathing materials that are used in roof construction. Commonly used materials include plywood, oriented strand board (OSB), and asphalt shingles. Each type of sheathing material has its own benefits and drawbacks, so it is important to consider which is best suited for a particular climate and condition.


is a popular choice for roof sheathing due to its strength, durability, and affordability.

It is also easy to install and can be used with a variety of roofing materials. However, plywood is prone to warping and is not as resistant to water damage as other types of sheathing material.


is made from wood chips and resin, making it a more durable and water-resistant option than plywood. It is also more affordable and easier to install.

However, OSB is susceptible to moisture damage and can be vulnerable to wind damage.

Asphalt shingles

are a popular choice for roof sheathing due to their affordability and longevity. They are relatively easy to install and are available in a variety of colors and styles. However, asphalt shingles can be prone to cracking and can be vulnerable to wind damage.

When choosing the best type of sheathing for your roof repair project, it is important to consider the climate, condition of the roof, and budget. Plywood is an affordable option that offers good strength and durability, but may not be the best choice for areas with high humidity or frequent rainfall. OSB is more water-resistant than plywood but may not be as strong or durable. Asphalt shingles offer good longevity but may be vulnerable to wind damage.

Step-by-Step Instructions

Inspecting the Sheathing for Further DamageThe first step in making repairs to damaged sheathing is to inspect the sheathing for further damage. Start by checking for cracks or holes in the sheathing, and for any areas that appear to be weakened or sagging. Use a flashlight to look for any signs of water damage or mold growth. Pay close attention to any exposed areas that may be vulnerable to the elements. If you find any areas of damage, repair them as soon as possible.

If left unaddressed, these issues can lead to further damage and costly repairs.

Patching Any Holes or Cracks

Once you have identified and addressed any further damage, it is time to begin patching the holes and cracks in the sheathing. Start by cleaning out any debris in the area and wiping away any dirt or debris. Then use a putty knife to fill any cracks with caulk or wood putty. If there are any small holes, patch them with a small piece of wood and use wood glue to secure it. Once the patches are in place, allow the area to dry completely before proceeding with the next step.

Sealing the Repaired Area

After the patches have dried, it is time to seal the repaired area.

Begin by applying a layer of roofing cement or tar around the edges of the patch. This will help ensure that no moisture can seep through and cause further damage. Next, apply a layer of roofing felt over the patch and use a brush to spread it evenly. This will provide an additional layer of protection for the repaired area.

Preventing Future Damage

The final step in making repairs to damaged sheathing is to prevent future damage. Start by trimming any nearby tree branches that may be encroaching on your roof.

This will help reduce the risk of leaves and debris falling onto your roof and causing further damage. You should also check your roof regularly for signs of wear and tear. If you notice any areas that are cracked, sagging, or otherwise compromised, make repairs as soon as possible to prevent further damage. Making repairs to damaged sheathing is essential for preserving the integrity of your roof and protecting your home from the elements. It is important to identify the type of sheathing you have, as well as the tools and materials that are needed for the repairs. Once you have the necessary materials, you can follow step-by-step instructions to make the repairs.

Regular maintenance should be performed to ensure that no further damage occurs. By understanding how to make repairs to damaged sheathing, you can be sure that your roof will remain in good condition and protect your home from potential damage.

Karina Chubb
Karina Chubb

Friendly bacon lover. Professional music fan. Lifelong zombie enthusiast. Avid travel practitioner. Wannabe music aficionado. Subtly charming bacon advocate.