To assess the damage, probe the wood around the hole with a sharp tool. Epoxy fills create a bond that is stronger than the wood itself, making it resistant to vibration and movement.
How to Repair Exterior Decayed Wood Holes with a Durable, Weatherproof Wood Patch
This creates a mechanical bond, giving the filler something to grip onto and dramatically reducing the chance of shrinkage or slippage. Next, consider the geometry of the hole.
Preparing the Cavity for Repair Proper preparation is the invisible foundation of a successful repair. The Structural Approach: Using a Wood Patch For the largest holes, particularly those where the structural integrity of the board is in question, a solid wood patch is the most reliable method.
How to Repair Exterior Decayed Wood Holes with a Structural Wood Patch
The final step in filling large holes is the art of blending. If the material feels soft, spongy, or crumbles easily, you are dealing with rot.
More About Filling large holes in exterior wood
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