Cedar shake and shingle roofs and sidings are prized for their natural aesthetics and long-term durability. However, successful installation requires precise attention to materials, fasteners, and techniques. This article explores key considerations for installing cedar shakes and shingles, emphasizing the importance of fastener selection, installation methods, and adherence to safety and building code requirements.
Fasteners: The Foundation of a Durable Installation
The choice and proper use of fasteners are critical to the longevity and performance of cedar shake and shingle installations. As outlined in the source material, not all fasteners are equal, and their selection can significantly affect the outcome of the project.
Fastener Placement and Length
The depth to which a nail is driven into the roof deck is a crucial factor in the installation process. A minimum of 3/4 inch of the nail should penetrate the roof deck. For example, if the roof deck is composed of 1/2-inch plywood, the nail must penetrate at least 1/4 inch beyond that. Additional layers such as cedar breather or underlayment can add 1/4 inch to the total thickness, requiring longer nails. In such cases, 1-1/2-inch nails are recommended over the minimum 1-1/4-inch nails typically used for cedar shingles. If rigid insulation is added, this may further increase the required nail length.
Fastener Material and Corrosion Resistance
The material of the fasteners is another important consideration. Stainless steel is commonly recommended for cedar shake and shingle installations due to its resistance to corrosion. However, not all stainless steel is created equal. The source material does not specify which grade of stainless steel is optimal, but it does emphasize that the selection should be made with the environment in mind. Coastal areas, for instance, may require a higher-grade stainless steel to withstand saltwater exposure and prolonged humidity.
Fastener Application: Hand vs. Power Tools
The method of fastener application can also influence the quality of the installation. Traditionally, hand-driving nails has been the industry standard, allowing experienced installers to achieve quick and precise results. However, many modern installers now use nail guns for efficiency. It is important to note that the longer nails used for cedar shakes and shingles can pose a challenge with power tools. Installers must adjust the nail gun pressure to avoid splitting the wood. As mentioned in the source material, using lower pressure is typically necessary to prevent damage.
Cedar Shake Roof Installation: Key Steps and Considerations
Cedar shake roofs offer a rustic, natural appearance and are known for their durability. However, the installation process is complex and requires attention to detail. The following steps summarize the key considerations for a successful cedar shake roof installation.
1. Preparation and Measuring
Before installation begins, the existing roof must be carefully removed. This involves removing shingles from the highest point of the roof, working downward toward the eaves. Safety equipment such as gloves, safety glasses, and sturdy footwear should be worn. A roofing shovel or pry bar can be used to lift and detach the shingles, and debris should be collected for disposal. It is also important to inspect the underlying structure for any signs of damage, such as rot or warping, and make necessary repairs before proceeding.
2. Batten Installation
Battens are often used in cedar shake roof installations to provide a stable base and ensure even spacing. These battens are typically spaced approximately five inches apart, though local building codes may specify different requirements. The battens should be level and properly aligned to create a smooth and consistent surface for the cedar shakes. Once the placement is marked, the battens are secured using a hammer and nails. Proper batten installation is essential for the overall look and durability of the roof.
3. Shingle Installation
The actual installation of cedar shakes involves careful layering and staggering to ensure both aesthetics and functionality. Shingles should be laid in a “broken bond” pattern, where each row is offset by at least 1.5 inches from the row below it. This staggered arrangement helps to improve the roof’s strength and coverage. A gap of approximately 1/5 inch should be left between shingles to allow for ventilation and accommodate thermal expansion and contraction.
Shingles should also overhang the eaves by about 1.5 inches to aid in water runoff. This overhang helps prevent water from seeping into the roof structure and reduces the risk of damage over time. As the installation progresses, it is important to periodically check the alignment and spacing of the shingles to ensure a consistent and professional appearance.
Cedar Shingle Installation on Sidewalls
While cedar shakes are typically used on roofs, cedar shingles are often installed on sidings. The installation process for sidings is similar to that of roofs but with some key differences. One important consideration is the exposure of the shingles. Cedar shingles on sidings can be installed with varying exposures to align with windows and doors, which can enhance the overall design and aesthetics of the structure.
The use of a story pole is recommended to ensure accurate and consistent installation. A story pole is a measuring tool that helps installers maintain proper spacing and alignment as they work. The story pole should be adjusted to account for the bottom of the shingles rather than the top, which can vary in length. This adjustment ensures that the shingles are installed correctly and uniformly.
Another technique for speeding up the installation process is the use of panelized shingles. These are cedar shingles that are pre-attached to plywood panels, allowing for faster installation. However, panelized shingles have some limitations. They cannot be installed with varying course widths, which may affect the alignment with windows and doors. Despite this, the increased efficiency of panelized shingles makes them a popular choice for many installers.
Safety and Health Considerations
Working with cedar wood requires attention to safety and health considerations. Cedar contains compounds that give it a distinct, pleasant smell, but these compounds can also cause allergic reactions in some individuals. In extreme cases, cedar dust has been classified as a potential carcinogen. Therefore, it is important to wear appropriate dust protection, including masks and eye protection, when working with cedar. This is particularly important for DIY installers who may not be as familiar with the risks associated with wood dust exposure.
Additionally, proper ventilation is essential when working in enclosed spaces. Cedar dust can accumulate quickly, so it is important to work in a well-ventilated area and take regular breaks to minimize exposure. If any symptoms such as irritation or difficulty breathing occur, the work should be paused immediately, and medical advice should be sought.
Cost and Considerations for DIY Installers
Cedar shake and shingle installations are known for their high cost, both in terms of materials and labor. For DIY installers, this can be a significant consideration. The cost of materials, tools, and supplies can add up quickly, and the complexity of the installation process increases the risk of mistakes that may require additional expenses.
Before undertaking a DIY cedar shake or shingle installation, it is important to evaluate the potential costs and risks. Mistakes during installation can lead to wasted materials and the need for re-purchase. Additionally, the labor-intensive nature of the project means that it may take longer than expected, which can affect the overall cost.
For those who are unsure about their ability to complete the project successfully, hiring a professional installer may be the best option. Professional installers have the experience and expertise to ensure a high-quality result and can often complete the project more efficiently than a DIY installer. This can ultimately save time and money in the long run.
Conclusion
Cedar shake and shingle installations offer a unique and durable solution for both roofs and sidings. However, the success of the installation depends heavily on the use of appropriate fasteners, adherence to installation techniques, and attention to safety and health considerations. From the selection of fasteners to the precise placement of shingles, each step in the process plays a crucial role in the overall performance and longevity of the installation.
For DIY installers, it is important to carefully evaluate the costs, risks, and requirements of the project before beginning. While cedar shake and shingle installations can be rewarding, they require a significant investment of time, effort, and resources. For those who are unsure about their ability to complete the project successfully, hiring a professional installer may be the most effective and efficient option.