Plywood Siding Repair? You’re Doing it Wrong! (Fix Now)

Plywood Siding Repair? You’re Doing it Wrong! (Fix Now) – A Guide to Doing it Right

This guide helps you properly repair plywood siding on your home. Many DIYers make common mistakes that lead to further damage down the line. By following these steps, you can ensure a long-lasting and visually appealing repair.

1. Understanding the Problem: Assessing Plywood Siding Damage

Before you even think about picking up a hammer, a thorough assessment is crucial. Incorrectly identifying the type and extent of damage will lead to inadequate repairs.

Common Types of Plywood Siding Damage:

• Delamination: This is where the layers of the plywood separate. It’s often caused by moisture exposure.
• Rot: Soft, spongy wood indicates rot, which is usually a sign of a more significant underlying issue.
• Cracks and Splits: These can be caused by weather exposure, impact, or simply aging.
• Warping and Buckling: Often a result of uneven moisture absorption, warping can severely compromise the siding’s integrity.
• Impact Damage: This refers to any damage that occurred due to an impact on the siding panel(s).
  

  Identifying the Root Cause:

It’s not enough to just fix the symptom. Figure out what caused the damage in the first place. Common culprits include:

• Lack of Proper Sealing: Missing or failing caulk around windows, doors, and trim.
• Inadequate Drainage: Gutters that are clogged or improperly sloped can lead to water pooling and damaging the siding.
• Poor Ventilation: Insufficient ventilation behind the siding can trap moisture.
• Proximity to Ground: Siding that is too close to the ground is more susceptible to moisture damage.

2. Gathering Your Supplies: Everything You Need for a Successful Repair

Having the right tools and materials on hand will save you time and frustration. Don’t skimp on quality; using cheap materials can lead to premature failure.

Essential Tools:

• Hammer
• Pry Bar
• Utility Knife
• Circular Saw (for cutting replacement panels)
• Drill with various drill bits and screwdriver attachments
• Tape Measure
• Level
• Safety Glasses
• Gloves
• Dust Mask
• Caulk Gun

Necessary Materials:

• Replacement Plywood Siding: Match the thickness and grade of the existing siding as closely as possible. Exterior-grade plywood is a must.
• Exterior-Grade Caulk: Choose a caulk specifically designed for exterior use and compatible with wood.
• Exterior-Grade Wood Filler: Used to fill small imperfections and cracks.
• Exterior-Grade Primer: Prepares the surface for paint and provides a protective barrier.
• Exterior-Grade Paint: Matches the existing color and provides weather protection.
• Galvanized Nails or Screws: Use corrosion-resistant fasteners to prevent rust and staining.
• Wood Preservative: Applying wood preservative is crucial to protect the new plywood and prevent any future rotting.

3. The Repair Process: Step-by-Step Instructions

This section details the actual repair process, broken down into manageable steps.

Step 1: Removing the Damaged Siding

• Carefully Pry Off Trim: Use a pry bar to gently remove any trim pieces surrounding the damaged siding. Be careful not to damage the trim.
• Cut the Siding: Using a circular saw set to the correct depth, carefully cut along the edges of the damaged section. This will help prevent damage to adjacent siding.
• Remove the Damaged Section: Use a pry bar and hammer to carefully remove the damaged section of siding. Take your time and avoid damaging the underlying sheathing.

Step 2: Preparing the Area

• Inspect Underlying Sheathing: Check the sheathing for any signs of rot or damage. Replace any damaged sheathing before proceeding.
• Apply Wood Preservative: Apply wood preservative to any exposed wood, including the sheathing and the edges of the surrounding siding. Let dry completely according to the manufacturer’s instructions.
• Ensure Proper Sealing and Drainage: Check for any points that could lead to water entering between the siding panels and the wall.

Step 3: Installing the New Siding

• Cut the Replacement Panel: Measure the opening carefully and cut the replacement panel to the exact size and shape needed.
• Test Fit: Before attaching the panel, test fit it to ensure it fits snugly and aligns properly with the surrounding siding.
• Attach the Panel: Using galvanized nails or screws, attach the replacement panel to the sheathing. Space the fasteners evenly and drive them in straight.
• Seal Edges: Caulk the perimeter of the newly installed plywood siding with exterior-grade caulk, ensuring a watertight seal.

Step 4: Finishing Touches

• Fill Imperfections: Use exterior-grade wood filler to fill any nail holes, cracks, or imperfections in the siding. Let dry completely and sand smooth.
• Prime and Paint: Apply a coat of exterior-grade primer to the repaired area. Once the primer is dry, apply two coats of exterior-grade paint that matches the existing siding.
• Reinstall Trim: Carefully reinstall any trim pieces that were removed. Use caulk to seal any gaps between the trim and the siding.

4. Preventing Future Problems: Maintenance and Best Practices

Once the repair is complete, taking preventative measures is crucial to prolong the life of your siding.

Regular Inspections:

• Inspect your siding at least twice a year (spring and fall) for any signs of damage, such as cracks, delamination, or rot.
• Pay close attention to areas around windows, doors, and trim.

Maintaining Gutters and Downspouts:

• Keep your gutters and downspouts clean and free of debris to ensure proper drainage.
• Make sure downspouts are directing water away from the foundation.

Proper Sealing:

• Re-caulk any cracks or gaps around windows, doors, and trim as needed.
• Inspect the caulk regularly for signs of cracking or deterioration.

Ventilation:

• Ensure adequate ventilation behind the siding to prevent moisture buildup.
• Check vents for blockages and clear them as needed.

Pruning Vegetation:

• Trim back any vegetation that is touching the siding. This will help prevent moisture and insect damage.

So, give these techniques a shot! Hopefully, you’re now feeling confident about how to repair plywood siding. Happy fixing, and may your siding stay strong for the long haul!