Installing cedar shake siding adds natural beauty and enduring curb appeal to American homes. This guide covers planning, materials, tool needs, and step‑by‑step installation, plus maintenance tips to keep cedar shake siding performing well for decades. The focus is on practical, code‑abiding methods that ensure durability, energy efficiency, and a quality finish.
Preparation And Planning
Start with a clear project plan that includes a weather window, proper sheathing, and a solid moisture barrier. Inspect existing walls for damage, remove old siding if present, and repair any rot or insect issues. Measure the exterior to determine shake size, siding quantity, and waste factor. Cedar shakes come in variety sizes and profiles, so select a product that matches your climate and style preferences.
Tools And Materials
Gather essential items: measuring tape, square, carpenter’s pencil, level, circular saw with a fine‑tooth blade, shears for flexible shakes, snips for aluminum flashing, pry bar, hammer, nail set, and a pneumatic nailer or hammer with corrosion‑resistant nails. Materials include cedar shakes, distributor starter strips or a rainscreen, underlayment or house wrap, aluminum or copper flashing, exterior caulk, and a protective finish or stain compatible with cedar. Have end‑cuts and edge trimming tools on hand for clean joints.
Layout, Cutting, And Fit
Begin with a straight, plumb starting line along the bottom edge. Install a starter strip or continuous Z flashing to keep water from wicking behind the first course. Shake boards should be cut to fit around windows, doors, and corners with careful notches. Leave a consistent exposure between shakes for even siding lines. Avoid tight butts; maintain small gaps for drainage and expansion due to moisture and temperature changes.
Flashing, Weatherproofing, And Moisture Control
Proper flashing is critical to prevent water intrusion. Install continuous flashing at corners and around openings, and use metal flashing where walls meet rooflines and at penetrations. A rainscreen or ventilation gap behind the shakes improves air flow and helps moisture escape. Seal all vertical and horizontal joints with high‑quality exterior caulk designed for cedar. Ensure the weather barrier remains intact and overlap it at all seams to direct water outward.
Fasteners And Nailing Schedule
Use corrosion‑resistant nails suitable for cedar, such as galvanized, stainless steel, or aluminum. Nails should penetrate into the sheathing by at least 1 inch without splitting the wood. Space fasteners to avoid splitting, usually about 8 to 12 inches apart along each shake, depending on width and local code requirements. Do not overdrive nails; leave a slight, unobtrusive dimpling that allows cedar to expand and contract with humidity changes.
Step‑By‑Step Installation
Step 1: Install the moisture barrier and ventilated rainscreen, securing it evenly across the wall. Step 2: Attach the starter strip along the bottom edge to establish a level first course. Step 3: Fit the first row of shakes, nailing to the studs or furring strips as recommended. Step 4: Continue with successive rows, offsetting joints for a traditional look and ensuring uniform exposure. Step 5: Cut shakes as needed for windows, doors, and corners, then apply flashing at openings. Step 6: Apply a finishing layer, stain or seal, after installation and weathering has begun per product directions.
Finish And Maintenance
Apply a UV‑protected stain, sealant, or paint designed for cedar within the manufacturer’s recommended timeframe. Refinish every 3–7 years, depending on climate, sun exposure, and slope. Clean shakes with a gentle wash or low‑pressure power rinse to remove dirt and mildew, allowing full drying between passes. Periodically inspect for cracked, split, or loose shakes and repair promptly to preserve appearance and performance.
Safety, Code, And Best Practices
Follow local building codes for exterior siding, ventilation, and fire resistance where applicable. Wear eye protection, gloves, and a dust mask when cutting cedar, and use a stable ladder with a helper for high installations. Maintain clear access and clean work areas to prevent trips. Cedar is sensitive to moisture; ensure a proper seal at all edges to minimize cupping, warping, or splitting over time.
Common Issues And Troubleshooting
Watch for cupping or warping from moisture buildup; address promptly by re‑sealing or replacing affected shakes. Mildew and mold can appear in shaded or damp areas—improve airflow and clean with a cedar‑safe cleaner. Cracking can occur from rapid drying; maintain consistent moisture levels and avoid exposing fresh stain to direct sun before it cures. If nails back out or shakes loosen, re‑nail from the backside or replace the affected board.
Pro Tips For A Lasting Cedar Shake Siding Job
- Choose sustainably harvested cedar rated for exterior use and compatible with your climate.
- Match shake width and exposure for a cohesive appearance and predictable water shedding.
- Plan for seasonal expansion by allowing joints and gaps for movement.
- Keep a small stock of common trim pieces and fasteners for future maintenance.