
When installing cedar shingles, it’s crucial to nail them correctly to ensure durability, weather resistance, and a clean finish. The ideal location to nail cedar shingles is just above the exposure line, typically about ¾ inch from the bottom edge of the shingle, ensuring the nail is driven into the solid wood of the shingle and the underlying roof deck or sheathing. For proper alignment and stability, use corrosion-resistant nails, such as stainless steel or galvanized, and space them approximately 6 to 8 inches apart along the shingle course. Avoid nailing too close to the edges to prevent splitting, and always follow manufacturer guidelines or local building codes for specific recommendations. Proper nailing ensures the shingles remain secure and maintain their aesthetic appeal over time.
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What You'll Learn
- Nailing Near Edges: Keep nails ¾ inch from shingle edges to prevent splitting and ensure secure fastening
- Nail Spacing Guidelines: Space nails 6 inches apart horizontally and 12 inches vertically for stability
- Roof vs. Siding: Adjust nailing patterns based on application; roofs require closer spacing than siding
- Nail Type Selection: Use stainless steel or galvanized nails to resist corrosion in cedar shingles
- Nailing Over Valleys: Double nails at shingle overlaps in valleys for added strength and durability

Nailing Near Edges: Keep nails ¾ inch from shingle edges to prevent splitting and ensure secure fastening
Cedar shingles, with their natural beauty and durability, are a popular choice for roofing and siding. However, their installation requires precision to maximize longevity and aesthetic appeal. One critical aspect often overlooked is the placement of nails. Nailing too close to the edges can lead to splitting, compromising both the shingle’s integrity and the overall structure. To avoid this, a simple yet effective rule is to keep nails ¾ inch from the shingle edges. This distance ensures the nail is securely embedded in the shingle’s thicker center, reducing the risk of cracks and providing a stronger hold.
Consider the anatomy of a cedar shingle: the edges are thinner and more prone to stress, especially during temperature fluctuations or heavy winds. Driving a nail within ¾ inch of the edge increases the likelihood of it acting as a stress point, causing the wood to split over time. By maintaining this buffer, you distribute the fastening force across a stronger section of the shingle, minimizing the risk of damage. This small adjustment can significantly extend the life of your cedar installation, saving time and money on repairs.
For practical application, measure and mark the ¾-inch distance from the edge before nailing. Use a straight edge or a dedicated shingle guide to ensure consistency across the entire surface. If you’re working with uneven or irregularly shaped shingles, err on the side of caution and increase the distance slightly. Additionally, pair this technique with corrosion-resistant nails, such as stainless steel or hot-dipped galvanized, to further protect against moisture-related issues. Proper nail placement, combined with the right materials, creates a seamless and durable cedar shingle installation.
Comparing this approach to alternative methods highlights its efficiency. Some installers might attempt to nail closer to the edge to save time or material, but this shortcut often leads to costly repairs down the line. Others might rely on adhesive supplements, but these can fail in extreme weather conditions. The ¾-inch rule strikes a balance between speed and precision, ensuring a secure fit without unnecessary complexity. It’s a testament to the principle that in construction, small details often yield the most significant results.
In conclusion, nailing cedar shingles ¾ inch from the edges is a simple yet powerful technique that prevents splitting and ensures a secure fastening. By understanding the shingle’s vulnerabilities and applying this rule consistently, you can achieve a professional finish that stands the test of time. Whether you’re a seasoned contractor or a DIY enthusiast, this practice is a cornerstone of successful cedar shingle installation. Master this detail, and you’ll elevate the quality and durability of your project.
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Nail Spacing Guidelines: Space nails 6 inches apart horizontally and 12 inches vertically for stability
Proper nail spacing is critical when installing cedar shingles, ensuring both longevity and structural integrity. The recommended guideline—6 inches apart horizontally and 12 inches vertically—strikes a balance between securing the shingles firmly and minimizing the risk of splitting the wood. This spacing allows for even weight distribution across the roof or siding, reducing the likelihood of warping or detachment over time. Adhering to these measurements also ensures that nails are placed in the strongest parts of the shingle, typically near the center or along the grain, where the wood is less prone to cracking.
Consider the practical implications of this spacing. For a standard 16-inch-wide cedar shingle, horizontal nails should be positioned at 6 inches from the edge and 10 inches from the first nail, ensuring even coverage. Vertically, the 12-inch spacing aligns with the natural expansion and contraction of cedar due to weather changes, preventing undue stress on the material. This method is particularly crucial in regions with extreme weather, where shingles are subjected to frequent temperature fluctuations and moisture exposure.
While the 6x12 spacing rule is widely accepted, it’s essential to account for variations in shingle thickness and local building codes. Thicker shingles may require slightly adjusted spacing to accommodate additional material, while thinner ones might adhere well within the standard guidelines. Always consult manufacturer recommendations or local regulations to ensure compliance. For DIY installers, marking the shingle layout beforehand with a chalk line can streamline the process and reduce errors, ensuring nails are consistently placed at the correct intervals.
A comparative analysis reveals the advantages of this spacing over alternative methods. Tighter spacing, such as 4 inches horizontally, may seem more secure but increases the risk of splitting, especially in drier climates where cedar is more brittle. Conversely, wider spacing, like 8 inches, can lead to inadequate fastening, making shingles vulnerable to wind uplift. The 6x12 guideline thus emerges as a Goldilocks solution—not too tight, not too loose, but just right for maximizing stability and durability.
Finally, the long-term benefits of adhering to these nail spacing guidelines cannot be overstated. Properly spaced nails extend the lifespan of cedar shingles, reducing the need for frequent repairs or replacements. This not only saves homeowners money but also minimizes environmental impact by reducing waste. By investing time in precise nail placement during installation, you ensure a resilient, aesthetically pleasing finish that withstands the test of time and weather.
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Roof vs. Siding: Adjust nailing patterns based on application; roofs require closer spacing than siding
Cedar shingles, prized for their natural beauty and durability, demand precise nailing techniques that vary significantly between roof and siding applications. This distinction hinges on the different environmental stresses each surface endures. Roofs, constantly exposed to wind uplift, rain, and snow, require a nailing pattern that prioritizes structural integrity. Siding, while still subject to weather, faces less extreme forces and allows for slightly more flexibility in nail spacing.
Understanding this fundamental difference is crucial for ensuring the longevity and performance of your cedar shingle installation.
For roofs, the general rule of thumb is to space nails closer together, typically 6 to 8 inches apart along the shingle's exposed edge. This tighter pattern creates a stronger bond between the shingles and the roof deck, effectively resisting wind uplift and preventing shingles from lifting or blowing off during storms. Additionally, using corrosion-resistant nails, such as stainless steel or hot-dipped galvanized, is essential for roofs due to their constant exposure to moisture.
Nailing too far apart on a roof compromises its structural integrity, leaving it vulnerable to damage and potential leaks.
Siding applications, on the other hand, allow for slightly wider nail spacing, typically 10 to 12 inches apart. This looser pattern provides adequate holding power while allowing for the natural expansion and contraction of the cedar shingles due to temperature and humidity fluctuations. Using longer nails, around 2 inches in length, is recommended for siding to ensure a secure hold through the shingle and into the underlying sheathing. While siding doesn't face the same wind uplift forces as roofs, proper nailing remains crucial for preventing warping, cupping, and premature deterioration of the shingles.
It's important to note that these are general guidelines, and specific nailing patterns may vary depending on factors like shingle thickness, roof pitch, and local building codes. Always consult the manufacturer's recommendations and local building regulations for precise instructions. Remember, taking the time to nail cedar shingles correctly, with the appropriate spacing and materials, ensures a beautiful and long-lasting exterior finish for your home.
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Nail Type Selection: Use stainless steel or galvanized nails to resist corrosion in cedar shingles
Cedar shingles, prized for their natural beauty and durability, demand careful consideration in every aspect of installation, particularly nail selection. The wrong choice can lead to unsightly rust stains and compromised structural integrity. Stainless steel and galvanized nails emerge as the clear winners in this context, offering superior corrosion resistance that safeguards both the aesthetic and functional longevity of your cedar roof or siding.
Stainless steel nails, with their chromium oxide layer, provide unparalleled protection against rust, making them ideal for coastal areas or regions with high humidity. While initially more expensive than other options, their longevity and low maintenance requirements make them a cost-effective investment over time. For optimal performance, choose type 304 or 316 stainless steel, ensuring maximum resistance to even the harshest environmental conditions.
Galvanized nails, coated with a layer of zinc, offer a more budget-friendly alternative to stainless steel. The zinc acts as a sacrificial layer, corroding before the underlying steel, thereby protecting the nail from rust. However, this sacrificial nature means galvanized nails have a shorter lifespan compared to stainless steel, particularly in corrosive environments. For best results, opt for hot-dipped galvanized nails, which provide a thicker and more durable zinc coating than electro-galvanized alternatives.
When selecting nail length, ensure they penetrate the underlying sheathing by at least 1.5 inches for optimal holding power. For cedar shingles, 1.25-inch or 1.5-inch nails are typically sufficient. Remember, using nails that are too long can cause splitting, while those that are too short compromise the shingle's security.
Ultimately, the choice between stainless steel and galvanized nails boils down to a balance between budget and long-term performance. For projects demanding the highest level of corrosion resistance and longevity, stainless steel is the undisputed champion. However, for those seeking a more economical option with acceptable durability, galvanized nails, particularly hot-dipped varieties, offer a viable solution. By carefully considering the specific demands of your project and the environmental conditions it will face, you can make an informed decision that ensures the beauty and integrity of your cedar shingles for years to come.
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Nailing Over Valleys: Double nails at shingle overlaps in valleys for added strength and durability
Valleys in a roof are high-stress areas where water runoff and wind uplift converge, making them prone to wear and tear. To fortify these vulnerable zones, double-nailing at shingle overlaps is a proven technique that enhances both strength and durability. This method involves driving two nails at each overlap, ensuring a tighter grip and reducing the risk of shingles lifting or shifting under pressure. By distributing the load across multiple fasteners, double-nailing minimizes the stress on individual nails, which is critical in areas where water and wind forces are most intense.
Executing this technique requires precision and attention to detail. Begin by aligning the cedar shingles so that the overlaps are consistent and even. Position the first nail approximately ¾ inch above the butt of the shingle and 1 inch in from the edge. Drive the second nail 2 inches above the first, maintaining the same lateral placement. This staggered pattern ensures maximum hold without compromising the shingle’s integrity. Use galvanized or stainless steel nails to prevent rust and corrosion, especially in humid or coastal environments where moisture is prevalent.
A common mistake to avoid is overdriving the nails, which can split the wood or create gaps that allow water infiltration. Instead, sink the nails flush with the shingle surface, ensuring a smooth finish that doesn’t disrupt the roof’s waterproofing. For added protection, consider applying a bead of roofing cement beneath the overlaps before nailing. This extra step creates a secondary barrier against leaks, further safeguarding the valley.
Comparing double-nailing to single-nailing reveals its superiority in longevity and performance. While single nails may suffice in less demanding areas, valleys benefit significantly from the reinforced structure provided by double fasteners. This approach is particularly advantageous in regions with heavy rainfall or high winds, where the added strength can prevent costly repairs down the line. By investing a little extra time and effort in this technique, homeowners can ensure their cedar shingle roofs remain resilient and watertight for years to come.
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Frequently asked questions
Begin nailing cedar shingles at the bottom edge of the roof, ensuring the first course is straight and level. This provides a solid foundation for subsequent rows.
Nails should be placed approximately 1 inch above the exposed edge of the shingle and spaced every 6 to 8 inches along the shingle’s length for proper securing.
Yes, cedar shingles can be nailed directly to the roof deck, but ensure the deck is clean, dry, and in good condition. Use a breathable underlayment for added protection.
Use galvanized or stainless steel nails to prevent rust and corrosion, especially in areas with high moisture or coastal environments.
Typically, two nails per shingle are sufficient for most applications. Use one nail on each side of the shingle, ensuring they are driven straight and flush with the surface.











































