cedar shake installation guide
Cedar Shake Installation Overview
Begin by selecting seasoned cedar, ensuring proper grading. Prepare the substrate with a solid base, inspect for rot, and install a vapor barrier. Consider local weather, use quality tools, and plan for proper drainage. and flashing done.
Choosing the Right Cedar Type
When selecting cedar for shake siding, prioritize seasoned, properly graded boards that have been kiln‑dried to reduce shrinkage and warping. Look for boards stamped with a grading code—Grade A is the most uniform, while Grade B offers more natural knots that can add character but may require extra sealing. Factory‑primed cedar is highly recommended; the primer locks in moisture and creates a uniform base for paint or stain, extending the life of the shake. Unprimed cedar can absorb water quickly, leading to rot if not treated promptly. Consider the climate: in northern regions, a higher grade with a tighter grain helps resist freeze‑thaw cycles. Also, evaluate the finish—natural oil finishes preserve the wood’s grain, whereas a solid paint provides a protective barrier but may mask the cedar’s texture. Finally, compare cost versus durability; a slightly higher upfront investment in premium, kiln‑dried cedar often pays off with fewer maintenance visits over the siding’s lifespan. Choosing the right cedar type also involves inspecting for knots, checking seasoning and ensuring the boards meet local building codes, guaranteeing a durable exterior style for homes
Preparing the Substrate
Before installing cedar shakes, the substrate must be clean and level. Inspect the existing siding for rot, loose boards, or uneven surfaces and replace damaged sections with pressure‑treated lumber that meets local codes. Install a continuous vapor barrier—polyethylene sheeting or a specialized siding membrane—over the studs, ensuring overlaps and sealing seams with high‑quality caulk. Lay a layer of furring strips or solid plywood, spaced 16 inches on center, to create a stable, horizontal plane; verify straightness with a laser level. Attach a rigid, weather‑resistant underlayment such as 1‑inch OSB or plywood to provide a smooth surface and distribute loads evenly. Perform a final moisture test; readings below 12% confirm the wood is dry. If moisture remains high, allow the wall to dry or use a dehumidifier before proceeding. Consider adding a small drainage channel at the wall’s base—a 1‑inch groove in the furring filled with waterproof sealant—to redirect any water that may seep behind the barrier. By addressing both moisture control and drainage, the substrate becomes a robust platform that supports the cedar shakes and prolongs the life of the exterior finish. Ensure all fasteners are corrosion‑resistant and spaced according to manufacturer recommendations to maintain structural integrity. A well‑prepared substrate also reduces the need for frequent caulking and extends maintenance intervals for homeowners.
Weather Considerations
When installing cedar shakes, timing and climate play decisive roles. In regions with high summer humidity, schedule work after the rainy season to allow the wood to dry fully; moisture trapped in the boards can lead to mold or warping. In colder zones, avoid installing during freeze‑thaw cycles; cold temperatures can harden the wood, making it brittle, while thawing can cause expansion and cracking. A temperature window between 50°F and 90°F is ideal for cutting, nailing, and sealing. Protect the freshly installed surface from direct precipitation by covering it with a breathable tarp or using a temporary roof overhang. Wind can lift loose shakes; secure them with additional nails or use a wind‑resistant flashing system along rooflines. UV exposure accelerates weathering; apply a high‑quality, UV‑resistant primer and finish to shield the fibers. In coastal areas, salt spray accelerates corrosion; opt for marine‑grade cedar or apply a salt‑resistant coating. Finally, monitor local weather forecasts; if a storm is predicted, pause work to prevent water intrusion and allow the material to acclimate before proceeding All steps ensure a durable finish for owners
Tools and Materials Needed
For a flawless cedar shake installation, gather the following essentials. Tools: a 10‑inch circular saw with a fine‑tooth blade for clean cuts, a 1‑in. nail gun (or hammer and 1‑in. nails for traditional look), a 2‑ft. measuring tape, a chalk line for accurate layout, a spirit level, a safety harness, eye protection, and a dust mask. Materials: seasoned cedar shakes (pre‑primed or ready for primer), a high‑strength, 0.5‑in. thick vapor barrier (polyethylene or kraft), a 1‑in. steel flashing for rooflines, a weather‑resistant primer (alkyd or oil‑based), a topcoat sealant or stain (water‑based or oil‑based), and a 2‑in. wide, 1‑in. thick exterior‑grade plywood or OSB for the substrate. Optional: a 3‑in. wide, 1‑in. thick rubber gasket for trim edges. Ensure all nails are stainless steel or hot‑dip galvanized to resist corrosion. Keep a supply of extra fasteners and a small bag of wood filler for touch‑ups. This kit covers every step from surface prep to final seal, guaranteeing a durable, weather‑proof finish. Add a 4‑in. wide rubber gasket along trim edges to block moisture and boost the cedar’s long‑term durability high during seasons.
Surface Preparation Steps
Inspect existing siding for rot, cracks, and moisture. Remove loose boards and replace damaged sections. Clean the surface with a pressure washer, then allow it to dry. Apply a primer coat to the cedar, ensuring coverage before proceeding.!
Inspecting Existing Siding
Begin by walking the perimeter of the house, noting any visible signs of distress such as cracks, warping, or loose boards. Use a flashlight to examine the backside of each panel, looking for moisture stains or mold growth that may indicate water infiltration. Measure the thickness of the siding with a caliper to confirm it meets manufacturer specifications; a reduction in thickness can signal rot or compression damage. Check the flashing around windows, doors, and rooflines for proper alignment and secure fastenings—misaligned flashing can allow water to seep behind the siding. Inspect the corners and junctions where different siding materials meet; gaps or mismatched overlaps often become entry points for dampness. Use a moisture meter on a sample panel to quantify internal dampness; readings above 12% suggest ongoing moisture problems. Record all findings in a log, noting the location, severity, and any immediate repairs needed. This thorough assessment ensures that subsequent steps—such as replacement or priming—are targeted and effective, preventing future water intrusion and extending the life of the new cedar shakes. Check that trim is intact and replace damaged sections before priming now soon today!.
Repairing Structural Damage
After identifying compromised panels, remove the affected cedar sections carefully, using a pry bar and a circular saw to keep cuts clean. Inspect the underlying framing for rot or insect damage; replace any compromised studs or joists with pressure‑treated lumber, ensuring a solid, dry substrate. Apply a high‑strength epoxy or wood filler to any gaps, allowing it to cure fully before proceeding. When reattaching new cedar, use stainless‑steel screws spaced 6–8 inches apart, pre‑drilling to prevent splitting. Tighten screws to the recommended torque, but avoid overtightening, which can crack the wood. Apply a waterproof primer to the newly installed panels, covering all edges and seams to seal against moisture. Finally, perform a water‑test by spraying a hose at a 45‑degree angle; observe for leaks, and patch any spots with additional primer or sealant before proceeding to the next step. This method ensures a durable, moisture‑resistant foundation for the new cedar shakes.
During the repair, keep the area dry by covering exposed surfaces with plastic sheeting. Inspect the new cedar after curing for defects, and touch‑up with stain before final installation.
Applying Primer to Cedar
Before any paint or stain, cedar must receive a high‑quality primer that seals pores and prevents tannin bleed. Start by sanding the surface with 120‑grit sandpaper, then follow with 220‑grit to smooth the grain. Wipe the boards with a tack cloth to remove dust. Apply a light coat of a water‑based, oil‑free primer using a foam roller for flat areas and a brush for edges. Let the primer dry for the time specified on the can, usually 2–4 hours. Inspect for any uneven spots; if necessary, lightly sand the primer with 220‑grit and reapply a thin coat. For exterior projects, choose a primer with UV resistance and mildew inhibitors. Once the primer is fully cured, the cedar will be ready for the final color, ensuring long‑lasting adhesion and a uniform finish.
After primer cures, inspect the surface for any missed spots or unevenness. Lightly sand again with 220‑grit to ensure a smooth base, then wipe with a tack cloth. If the cedar has a natural oil sheen, consider a primer that contains a sealant to lock in oils. Apply a second coat of primer if the boards are porous or if the first coat appears uneven. Allow coat dry before proceeding to color stain!!
Installing a Vapor Barrier
Choose a 6‑mil polyethylene or high‑density polyolefin film rated for exterior use. Lay the sheet over furring strips, sealing seams with foil tape. The barrier should run from the bottom plate to the roofline, overlapping at the top by 2 inches. Trim excess, seal edges, and verify with a water‑spray test before installing shakes.
Once the barrier is sealed, double‑check for gaps before installing shakes. Verify all seams are sealed and no gaps remain before installing shakesEnsure the vapor barrier is sealed before starting the first course of shakes
Installation Process
Start at the bottom, align shakes with a chalk line. Nail each shake 2‑3 inches from the edge, leaving a ½‑inch gap. Overlap each row 3‑4 inches, cutting at rooflines for a clean finish. Add flashing at roof corners and seal all seams!!
Before nailing, set a reference line with a chalk line or laser level. Measure wall height from sill to eave, mark the first course’s lower edge at the sill height, leaving a ½‑inch clearance. Run a straight chalk line horizontally across the wall, ensuring it is level. This line guides placement, giving consistent overlap and spacing. Measure each shake’s width with a tape, mark the center, and cut to fit. If the wall slopes, adjust the line but keep the same clearance. For the top course, set the line 2 inches above the last board’s upper edge to allow flashing and accommodate the roof pitch. Keep the line taut, replace it after each course to correct vertical drift. This marking process ensures a symmetrical appearance, uniform overlaps, and that cedar shakes shed water efficiently without gaps or misalignments. Adhering to these measurements guarantees a durable, weather‑resistant finish that showcases cedar’s natural beauty for decades. Install a vapor barrier beneath the shakes and ensure proper flashing at rooflines to prevent moisture infiltration. Use a high‑quality primer on all cedar surfaces before sealing to enhance adhesion and protect against rot. Seal seams with premium caulk for protection!!
Laying the First Course
Start by aligning the first board with the reference line established during marking. Place the board so its lower edge sits flush with the sill plate, leaving a ½‑inch gap for expansion. Secure the board with 1‑inch nails driven at a 45‑degree angle, spacing nails 12 inches apart along the top edge. Insert a nail at the board’s corner to lock it to the sill plate. After the first board, lay the second board so its lower edge overlaps the first by 1‑inch, ensuring the upper edge of the second board sits 2 inches above the first’s upper edge to accommodate flashing. Continue this staggered pattern across the wall. When reaching the end of a row, cut the final board to fit, leaving a ½‑inch gap at the top for the next course. Use a hammer or nail gun with a 1‑inch nail set to avoid splitting. Once the first course is complete, apply a bead of high‑quality exterior caulk along all seams before proceeding to the next course to seal gaps and prevent water intrusion. This method ensures a uniform, weather‑resistant foundation for the cedar shake wall. Ensure the first board is perfectly level before nailing. Use a level to verify!
Ensuring Proper Overlap
To maintain a watertight seal, each cedar shake must overlap the one below it by a minimum of 1‑inch at the lower edge and 2‑inches at the upper edge. Begin the second course by positioning the new board so its lower edge sits 1‑inch above the lower edge of the board beneath it. This creates a continuous drip edge that directs water away from the wall. The upper edge of the new board should sit 2‑inches above the upper edge of the board below, allowing the upper edge to sit behind the lower edge of the next board. This staggered pattern prevents long vertical seams that could trap moisture. When you reach the end of a row, cut the final board to fit, leaving a ½‑inch gap at the top for the next course. Use a sharp utility knife and a straight edge to ensure clean cuts. Nail each board at a 45‑degree angle, spacing nails 12 inches apart along the top edge. After nailing, apply a bead of exterior caulk along all overlapping seams to seal any micro‑gaps. Verify the overlap by running a straightedge across the seams; any gaps larger than ¼‑inch should be filled. Consistent overlap not only improves the aesthetic profile but also extends the life of the siding by preventing water infiltration.
Begin by selecting seasoned cedar, ensuring proper grading. Prepare the substrate with a solid base, inspect for rot, and install a vapor barrier. Consider local weather, use quality tools, and plan for proper drainage. and flashing done.
Finishing Touches
After sealing, install trim and fascia to frame edges. Use matching cedar or composite. Finish with a clear coat to protect the finish. Inspect gaps, ensure proper flashing, and document the fina look for home.
Caulking and Sealing
When selecting a sealant, choose one that is specifically formulated for cedar and is compatible with the chosen paint or stain. Apply in thin, even coats, allowing each coat to dry fully before applying the next, then use a brush or roller for a smooth finish smoothly
Apply a high‑quality, exterior‑grade silicone or acrylic caulk along all joints, seams, and where the shakes meet fascia, trim, and windows. Clean the surface with a mild detergent, rinse, and allow to dry before caulking. Use a caulk gun to apply a continuous bead, smoothing with a wet finger or caulk tool for a neat finish. For larger gaps, insert a flexible foam or weeping strip before caulking to accommodate expansion and contraction. After the caulk cures, apply a breathable, water‑repellent sealant or clear coat that matches the chosen finish color. This protects the wood from moisture, UV damage, and mildew while maintaining breathability. Inspect the caulk lines annually, replacing any cracked or cracked sections to keep the barrier intact. Proper caulking and sealing extend the life of cedar shakes and preserve the aesthetic appeal of the exterior.
Painting or Staining Options
Choosing the right finish for cedar shakes is essential for both protection and aesthetics. A clear, penetrating stain preserves the natural grain while providing UV protection, and is ideal for homeowners who want to showcase the wood’s character. For a more uniform appearance, a semi‑gloss or satin paint can be applied; these finishes offer higher durability, easier cleaning, and a broader color palette. Before applying any finish, ensure the cedar is clean, dry, and free of mildew. Wash the surface with a mild detergent, rinse thoroughly, and allow it to dry completely. If the wood has been previously painted or stained, lightly sand the surface to promote adhesion. When applying a stain, use a high‑quality brush or rag, working in the direction of the grain, and wipe off excess after the recommended dwell time. For paint, apply two coats, each spaced 24 hours apart, to allow proper curing. Always use a primer designed for wood to improve adhesion and prevent blistering. When selecting a product, consider the climate: in humid or coastal areas, choose a mildew‑resistant formula. Finally, maintain the finish by inspecting annually for signs of wear, and re‑stain or repaint every 5–7 years to keep the cedar looking fresh and protected.
Regular maintenance includes cleaning with a brush, inspecting cracks, and applying touch‑ups as needed!
Regular Maintenance Schedule
After installation, a proactive maintenance routine keeps cedar shakes looking fresh and protects against moisture damage. Begin with a visual inspection every spring and fall to spot cracks, loose fasteners, or signs of rot. Use a flashlight to examine the underside of each shake, where water can accumulate. Gently clean the surface with a soft‑bristle brush and a mild detergent solution; rinse thoroughly and allow the wood to dry completely before any further work. If mildew or algae appears, treat the affected area with a diluted bleach solution (1 part bleach to 10 parts water) and scrub lightly. After cleaning, reapply a penetrating stain or paint every 5–7 years, depending on exposure and finish type. For high‑traffic or high‑sun areas, consider a 3‑year interval. Always apply a fresh coat of primer before repainting to ensure adhesion. Additionally, inspect the vapor barrier and flashing annually, especially after severe weather events, to confirm they remain intact. Record each inspection and maintenance action in a log; this documentation aids future repairs and extends the life of the siding.
In addition, check for insect activity such as carpenter ants or termites; treat infestations promptly. Verify fasteners remain secure; replace any corroded or loose ones. Schedule a professional inspection every 10 years to assess long‑term performance and address issues.
Warranty and Longevity Expectations
Warranty and longevity expectations for cedar shake siding depend on product, finish, and installation quality. Premium cedar typically carries a 15‑ to 25‑year limited warranty against structural failure, rot, and dimensional changes, provided the siding is installed on a properly prepared substrate with a vapor barrier and adequate flashing. Paint or stain warranties are usually 5 to 10 years, protecting against peeling, blistering, and color loss when finished with a UV‑resistant coating. In real‑world conditions, cedar can last 30 to 40 years in temperate climates with routine cleaning and re‑staining every 5 to 7 years. In harsher climates the service life may drop to 20 to 25 years, even with diligent upkeep. To maximize both warranty coverage and actual lifespan, follow the manufacturer’s installation guidelines, use quality fasteners and flashing, and maintain a consistent cleaning and staining schedule. Homeowners can enjoy cedar’s natural beauty for decades while keeping warranty claims straightforward and effective. Additionally, homeowners should document all maintenance activities and address any signs of damage to preserve the siding’s and uphold warranty terms!!