For holes caused by decay, simply filling the space is insufficient, as the compromised wood surrounding the hole will likely continue to deteriorate, undermining the repair from within. The edges of the hole need to be firm and solid; any loose material will break away over time, causing the patch to detach.
Selecting the Best Epoxy for Large Exterior Wood Holes
Ignoring this step results in a temporary fix that fails as soon as the surrounding wood weakens further. To counteract this, you can drive small wooden splines or tight-fitting dowels into the sides of the cavity.
Preparing the Cavity for Repair Proper preparation is the invisible foundation of a successful repair. Dealing with large holes in exterior wood is a challenge many homeowners and tradespeople face, whether the damage stems from rot, insect activity, or physical impact.
Best Epoxy For Large Exterior Wood Holes
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. This mixture is sculpted slightly proud of the surrounding surface to account for shrinkage as it cures.
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