Tar paper, also known as roofing felt, is a widely used material in the construction industry for providing a protective barrier between the roof deck and the roofing materials. It helps prevent water infiltration, provides an additional layer of insulation, and enhances the durability of the roof. However, one question that often arises is whether tar paper can be installed safely in high wind conditions. In this article, we will explore this topic in detail, addressing the factors to consider and the precautions to take when installing tar paper in such conditions.
Understanding the Role of Tar Paper
Before delving into the specific conditions regarding high winds, it is essential to understand the purpose and function of tar paper in roofing. Tar paper primarily acts as a secondary barrier against moisture infiltration. It is typically installed under the primary roofing materials, such as shingles or metal panels, to protect the roof deck from water damage.
Additionally, tar paper can provide some insulation and thermal resistance, reducing heat transfer between the roof and the exterior environment. It also offers extra protection against wind-driven rain or snow that could potentially penetrate the primary roofing material.
Factors to Consider in High Wind Conditions
When determining whether it is safe to install tar paper in high wind conditions, several factors must be taken into account. Here are some key considerations:
- Wind Speed: The first factor to assess is the wind speed. Different regions have varying wind speed limits, and it is crucial to understand the local building codes and regulations. For instance, coastal areas and regions prone to hurricanes or tropical storms may have specific guidelines to follow.
- Type of Roof: The type of roof also affects the installation process and safety measures required. For example, flat roofs tend to be more susceptible to wind uplift than sloped roofs. The material used for the primary roofing, such as asphalt shingles or metal panels, may also have different wind resistance capabilities.
- Tar Paper Quality: The quality of the tar paper itself is an important consideration. Lower-grade or thinner felts may not withstand high winds as effectively as higher-grade options. It is advisable to choose a tar paper product that has been tested and approved for the desired wind speed conditions.
Precautions for Installing Tar Paper in High Wind Conditions
If the wind conditions are within the acceptable limits and proper precautions are taken, tar paper installation can be done safely. Here are some precautions to consider:
- Secure Roof Deck: Before installing tar paper, ensure that the roof deck is properly secured to provide a stable and solid foundation for the materials. Any loose or damaged sections should be repaired or reinforced before proceeding.
- Fastening Method: To enhance the wind resistance of the tar paper, it is recommended to use a sufficient number of nails or staples during installation. The fasteners should be placed according to the manufacturer’s guidelines, typically with overlapping sections to prevent wind-driven rain from seeping through.
- Overlapping Technique: Proper overlapping of tar paper sheets is crucial to create a continuous barrier and maximize wind resistance. The minimum recommended overlap is usually around 2 inches, but in high wind areas, it may be advisable to increase this overlap to ensure better protection.
- Temporary Securing: In extremely high wind conditions, it may be necessary to temporarily secure the tar paper to the roof deck using a suitable adhesive or other methods. This can prevent the material from lifting or becoming displaced during installation.
While installing tar paper in high wind conditions may pose challenges, it can be done safely as long as certain precautions are taken. Understanding the wind speed limits, selecting appropriate tar paper, and following proper installation techniques are key to ensure the effectiveness and reliability of the roofing system. It is always recommended to consult local building codes and regulations, as well as professional roofing experts, for specific guidance in your area.