When should you replace fascia, and how is it done?
Short answer. Replace fascia when the board is soft, rotted, split or pulling away, when paint keeps peeling in the same spot, or when gutters will not stay attached. Small rotted sections can be cut out and replaced, and the work is often done during a roof or gutter replacement, since the drip edge and gutters have to come off anyway.
What rots fascia
- Missing or short drip edge. Water runs off the shingles and soaks the top of the board.
- Overflowing gutters. Clogged gutters spill over the back edge onto the wood.
- Gutters mounted wrong. Water slips between the gutter and the fascia.
- Paint failure. Bare wood at joints and ends absorbs water.
Signs it is time
- A screwdriver sinks easily into the wood.
- Peeling paint, dark staining or mildew along one stretch.
- Gutters sagging or pulling away because the screws have nothing to bite.
- Gaps where birds, squirrels or insects get into the soffit or attic.
How replacement works
- Remove the gutter and, if needed, lift the drip edge.
- Cut out the rotted section back to sound wood, ideally ending joints over rafter tails.
- Check the rafter tails and roof deck edge behind it, since rot often spreads there.
- Install new primed wood or a rot-resistant PVC or composite board, sealing and painting cut ends.
- Reinstall drip edge and gutters so water drains into the gutter, not behind it.
Aluminum wrap can protect wood fascia, but wrapping over existing rot hides the problem and traps moisture. Cost depends on how many feet are affected, the material, the height of the work and whether gutters come off. Fixing the water source matters as much as the board itself, which is why drip edge and gutter sizing and guards are worth reading too.