How to Hang Cedar Shingles

Cedar shingles provide natural beauty, weather resistance, and a distinct texture to exterior walls. Proper hanging ensures long-lasting performance, even in varying climates. This guide explains step-by-step techniques, material choices, and practical tips to achieve a durable, aesthetically pleasing cedar shingle installation for American homes.

Tools And Materials

Gather essential tools including a pry bar, chalk line, utility knife, tin snips, circular saw or hand saw, hammer, nail gun with stainless steel or copper nails, measuring tape, level, and a ladder or scaffold. Use high-quality cedar shingles sized to your project, typically 5/8 inch to 1 inch thick with uniform exposure. Install angled or micro-vented soffits as needed. Use corrosion-resistant fasteners and optional glue or waterproof sealant at butt joints for extra sealant.

Prep And Substrate

Inspect the wall surface for smoothness, straightness, and dry, clean framing. Repair any gaps or warped boards, and ensure the substrate is clean of dirt, oils, or loose material. Install a water-resistive barrier (WRB) behind the shingles and flashing around windows, doors, and chimneys. Check local building codes for nailing patterns and air gaps. A solid, properly prepared substrate reduces warping and improves the shingle’s life expectancy.

Starter Course And Layout

Begin with a true, level starter course using full-thickness cedar shingles or a pre-cut starter strip. Align the first row along a straight chalk line at the bottom edge of the wall. Use spacers for consistent exposure between courses, typically 5/8 inch to 1 inch, depending on the shingle size. A uniform starter course ensures clean, even rows and minimizes visible gaps at the bottom edge.

Nailing Patterns And Exposure

Shingle nailing should secure the top third of each piece to prevent cupping while allowing for venting and movement. Use corrosion-resistant nails appropriate for cedar, generally 1 1/4 inch to 1 1/2 inch in length for 5/8 inch to 1 inch shingles. Drive nails flush to the face without splitting the wood. Maintain consistent exposure across courses, with each row overlapping the one below by the intended exposure amount.

Color And Grade Considerations

Choose high-quality, clear or knotty cedar with uniform color to minimize visible variation. Color variation is natural; consider staining or sealing after installation to preserve color and protect against weathering. Match the shingle profile to the architectural style for a cohesive look and to help with water shedding.

Cutting And Fitting

Cut shingles with a sharp blade or saw to fit around corners, windows, and vents. Avoid tearing or splintering the cedar. For ends, use a clean butt joint or staggered end joints to reduce noticeable seams. Plan for weatherboarding patterns, such as diagonal or straight, based on the design and exposure. Always measure twice and cut once to minimize waste and errors.

Ventilation, Drainage, And Drying Time

Allow for proper ventilation behind cedar shingles to reduce moisture buildup and wood rot risk. Install a breathable WRB and ensure adequate drainage at runoffs and overhangs. After installation, give the shingles time to acclimate in the local climate before finishing or sealing. If applying a sealant, follow the manufacturer’s recommendations for cedar, and avoid sealing the entire surface if breathability is needed.

Flashing, Water Protection, And Details

Install metal flashing at all roof-to-wall transitions, chimney bases, and window head details. Use continuous wrap or step-flashing methods to direct water away from the wall. Seams and joints must be properly sealed with matching flashing material and sealant. Ensure the bottom edge of shingles does not trap standing water by maintaining proper slope and clearance from grade.

Maintenance And Longevity

Regularly inspect for cupping, warping, or nail corrosion. Clean debris from the wall surface and trim vegetation that may trap moisture. Re-seal or re-stain every 3 to 7 years, depending on climate and exposure, to preserve color and wood integrity. Promptly address any signs of rot or insect damage with replacement shingles, flashing checks, and proper sealing to extend the life of the installation.

Common Mistakes To Avoid

Avoid over-nailing or under-nailing, which can cause cracks or loose shingles. Do not skip a proper WRB or flashing; water intrusion is the leading cause of failure. Ensure even exposure and alignment from course to course. Refrain from using non-cedar-compatible sealants that can trap moisture or cause wood staining. Finally, avoid rushed cuts around openings to prevent gaps and water penetration.

Safety Considerations

Work from stable ladders or scaffolding, using fall protection when required. Wear eye protection, gloves, and hearing protection when cutting and nailing. Follow local codes for fire safety, electrical clearances, and plume control when cutting near roofs. Properly dispose of waste cuttings and protect surrounding landscaping during installation.

Troubleshooting Tips

If shingles cup or buckle, check for improper nailing height or insufficient ventilation. Replace cupped shingles and adjust subsequent rows to reestablish straight lines. For staining or discoloration, inspect moisture exposure and consider re-staining after cleaning the surface. Persistent leaks indicate flashing or WRB issues that require inspection and repairs by a professional.