When it comes to roofing installation, there are several crucial steps that must be followed to ensure a watertight and durable roof. Two of the most important components of a roofing system are drip edge and tar paper (also known as underlayment). However, there is often confusion about the correct order of installation. In this article, we will explore the question of whether to put drip edge on before tar paper, and provide a detailed guide to the installation process.
Understanding Drip Edge and Tar Paper
Before we dive into the installation process, it’s essential to understand the purpose and function of drip edge and tar paper.
Drip Edge: What is it and Why is it Important?
Drip edge is a type of flashing that is installed along the edges of a roof to prevent water from seeping under the roofing material. It is typically made of metal or plastic and is designed to direct water away from the roof’s edges, reducing the risk of leaks and water damage. Drip edge is usually installed along the rake edges (the edges that run parallel to the slope of the roof) and the eave edges (the edges that run perpendicular to the slope of the roof).
Tar Paper: What is it and Why is it Important?
Tar paper, also known as underlayment, is a layer of material that is installed between the roof deck and the roofing material. Its primary function is to provide an additional layer of protection against water infiltration and to help prevent damage to the roof deck. Tar paper is typically made of a waterproof material, such as asphalt-saturated felt paper or synthetic underlayment.
The Installation Process: Drip Edge or Tar Paper First?
Now that we understand the purpose and function of drip edge and tar paper, let’s explore the correct order of installation.
Installing Drip Edge First
Some roofing contractors prefer to install drip edge before tar paper. This approach has several advantages:
- Easier installation: Installing drip edge first allows for a more straightforward installation process. The drip edge can be secured to the roof deck before the tar paper is installed, making it easier to ensure a watertight seal.
- Better protection: Installing drip edge first provides an additional layer of protection against water infiltration. The drip edge can help to direct water away from the roof’s edges, reducing the risk of leaks and water damage.
However, installing drip edge first also has some disadvantages:
- Increased risk of damage: If the drip edge is installed before the tar paper, there is a risk of damage to the tar paper during the installation process. The tar paper may be torn or punctured by the drip edge, compromising its effectiveness.
- Reduced adhesion: If the drip edge is installed before the tar paper, the tar paper may not adhere properly to the roof deck. This can reduce the effectiveness of the tar paper and increase the risk of leaks.
Installing Tar Paper First
Other roofing contractors prefer to install tar paper before drip edge. This approach also has several advantages:
- Improved adhesion: Installing tar paper first allows for better adhesion to the roof deck. The tar paper can be secured to the roof deck before the drip edge is installed, ensuring a strong and durable bond.
- Reduced risk of damage: If the tar paper is installed before the drip edge, there is less risk of damage to the tar paper during the installation process. The drip edge can be installed over the tar paper, reducing the risk of tears or punctures.
However, installing tar paper first also has some disadvantages:
- More complex installation: Installing tar paper first can make the installation process more complex. The tar paper must be secured to the roof deck before the drip edge is installed, which can be more time-consuming and labor-intensive.
- Reduced protection: If the tar paper is installed before the drip edge, there may be reduced protection against water infiltration. The drip edge may not be able to direct water away from the roof’s edges as effectively, increasing the risk of leaks and water damage.
Conclusion
In conclusion, the question of whether to put drip edge on before tar paper is a complex one. Both approaches have their advantages and disadvantages, and the correct order of installation will depend on the specific roofing project. However, in general, it is recommended to install drip edge before tar paper. This approach provides an additional layer of protection against water infiltration and helps to ensure a watertight seal.
Best Practices for Installing Drip Edge and Tar Paper
Regardless of the order of installation, there are several best practices that should be followed when installing drip edge and tar paper:
- Ensure a clean and dry roof deck: Before installing drip edge or tar paper, ensure that the roof deck is clean and dry. This will help to ensure a strong and durable bond between the roofing materials.
- Use high-quality materials: Use high-quality drip edge and tar paper that meet the relevant building codes and standards.
- Follow the manufacturer’s instructions: Follow the manufacturer’s instructions for the installation of drip edge and tar paper.
- Ensure proper flashing: Ensure that the drip edge is properly flashed to prevent water infiltration.
By following these best practices and installing drip edge and tar paper in the correct order, you can help to ensure a watertight and durable roof that will last for years to come.
Additional Tips and Considerations
In addition to the best practices outlined above, there are several additional tips and considerations that should be taken into account when installing drip edge and tar paper:
- Consider the climate: The climate and weather conditions in your area should be taken into account when installing drip edge and tar paper. In areas with high winds or heavy rainfall, additional measures may be necessary to ensure a watertight seal.
- Consider the type of roofing material: The type of roofing material being used should also be taken into account when installing drip edge and tar paper. Different roofing materials may require different types of underlayment and flashing.
- Consider hiring a professional: If you are not experienced in roofing installation, it is recommended to hire a professional roofing contractor. They will have the necessary skills and knowledge to ensure a watertight and durable roof.
By taking these additional tips and considerations into account, you can help to ensure a successful roofing installation project.
Conclusion
In conclusion, the installation of drip edge and tar paper is a critical component of a roofing system. By understanding the correct order of installation and following best practices, you can help to ensure a watertight and durable roof that will last for years to come. Whether you are a DIY homeowner or a professional roofing contractor, it is essential to take the time to get it right.
What is drip edge and why is it important in roofing installation?
Drip edge is a type of flashing installed along the edges of a roof to prevent water from seeping under the roofing material and causing damage. It is typically made of metal or plastic and is designed to direct water away from the roof’s edges and into the gutters. Drip edge is an essential component of a roofing system, as it helps to protect the roof’s integrity and prevent costly repairs down the line.
Without drip edge, water can seep under the roofing material and cause rot, mold, and structural damage. This can lead to expensive repairs, including replacing the roofing material, repairing damaged wood, and even rebuilding the roof’s structure. By installing drip edge, homeowners can help to ensure their roof remains watertight and secure, even in heavy rain or snow.
What is tar paper and what role does it play in roofing installation?
Tar paper, also known as roofing felt, is a type of underlayment material used in roofing installation. It is a paper-based product that is saturated with asphalt and is designed to provide an additional layer of protection against water and weathering. Tar paper is typically installed over the roof’s decking and under the roofing material, helping to prevent water from seeping into the roof’s structure.
Tar paper plays a critical role in roofing installation, as it helps to protect the roof’s decking and structure from water damage. It also provides a smooth surface for the roofing material to be installed on, helping to ensure a secure and watertight seal. Additionally, tar paper can help to prevent ice dams from forming on the roof, which can cause costly damage and repairs.
Do you put drip edge on before tar paper in roofing installation?
The order in which drip edge and tar paper are installed can vary depending on the specific roofing system and local building codes. However, in general, it is recommended to install drip edge over the tar paper. This is because the drip edge needs to be securely fastened to the roof’s decking, and installing it over the tar paper helps to ensure a watertight seal.
Installing drip edge over tar paper also helps to prevent water from seeping under the drip edge and into the roof’s structure. By installing the drip edge on top of the tar paper, homeowners can help to ensure their roof remains secure and watertight, even in heavy rain or snow. It’s always best to consult with a professional roofer or check local building codes to determine the best installation method for your specific roofing system.
What are the benefits of installing drip edge before tar paper?
While it is generally recommended to install drip edge over tar paper, there are some benefits to installing it before. One of the main benefits is that it can help to prevent water from seeping under the tar paper and into the roof’s structure. By installing the drip edge first, homeowners can help to ensure their roof remains watertight and secure.
Additionally, installing drip edge before tar paper can help to simplify the installation process. By installing the drip edge first, roofers can ensure that it is securely fastened to the roof’s decking, making it easier to install the tar paper and roofing material. However, it’s essential to consult with a professional roofer or check local building codes to determine the best installation method for your specific roofing system.
Can I install drip edge and tar paper at the same time?
While it is technically possible to install drip edge and tar paper at the same time, it is not generally recommended. This is because the drip edge needs to be securely fastened to the roof’s decking, and installing it at the same time as the tar paper can make it difficult to ensure a watertight seal.
Additionally, installing drip edge and tar paper at the same time can increase the risk of errors and mistakes. By installing each component separately, roofers can ensure that each layer is properly secured and watertight, helping to prevent costly repairs down the line. It’s always best to consult with a professional roofer or check local building codes to determine the best installation method for your specific roofing system.
What are the consequences of not installing drip edge or tar paper correctly?
Failing to install drip edge or tar paper correctly can have serious consequences for a roof’s integrity and longevity. If the drip edge is not properly secured, water can seep under the roofing material and cause rot, mold, and structural damage. Similarly, if the tar paper is not installed correctly, it can fail to provide an adequate barrier against water and weathering.
The consequences of not installing drip edge or tar paper correctly can be costly and time-consuming to repair. Homeowners may need to replace the roofing material, repair damaged wood, and even rebuild the roof’s structure. In extreme cases, a poorly installed roof can even collapse, posing a risk to people and property. It’s essential to consult with a professional roofer or check local building codes to ensure that your roof is installed correctly and securely.
How can I ensure that my drip edge and tar paper are installed correctly?
To ensure that your drip edge and tar paper are installed correctly, it’s essential to consult with a professional roofer or check local building codes. A professional roofer can assess your roof’s specific needs and ensure that the drip edge and tar paper are installed correctly and securely.
Additionally, homeowners can take steps to ensure that their roof is installed correctly by researching local building codes and regulations, inspecting the roof regularly, and addressing any issues promptly. By taking these steps, homeowners can help to ensure their roof remains secure and watertight, even in heavy rain or snow. Regular maintenance and inspections can also help to extend the life of the roof and prevent costly repairs down the line.