How To Replace The Outside House’S Bottom Trim Board?

Replacing the bottom end of a rotted board is a simple process that involves drawing a line across the face of the board, 6 inches above the bad section, and setting a circular-saw blade to the thickness of the board. Use a Speed Square to guide the saw shoe, making a 90° cut. Wear safety glasses and use a demo blade to avoid hidden nails.

The first step in replacing rot-damaged trim is to remove affected areas, such as discolored or soft spots, particularly in areas prone to moisture accumulation. Once identified, it’s time to remove the damaged sections.

When replacing exterior wood trim, it’s important to do your repairs prior to the damage. Rotted trim can wear, warp, and rot over time, leading to water damage. To repair rotted trim, choose and install the right trim material for your project, accounting for moisture movement, thermal expansion, and framing stability.

Using a cutting jig, carefully cut along the marked line to create space for new, wider corner boards. Apply two coats of high-quality exterior paint to your new corner boards and allow them to dry.

Replacement of rotted trim with epoxy is affordable and effective, and the oscillating multitool is the best tool for this situation. To repair, replace the wood, replace it with new wood, seal the seams between wood pieces with paintable exterior caulk, properly prime and measure each piece of trim to be replaced. Use a small pry bar to start removing the pieces, exposing enough boards to get accurate measurements.