what causes soffit rot
By in Roof 2. The fascia board and soffit plywood rotted because it rested on the roof shingles and soaked up rain water. The wood fascia board was replaced with rot-proof PVC composite board. Flashing is installed at the roof valley to channel the rain water away from the fascia and soffit. How to Repair Rotted Soffit and Fascia.
Dayton Lane Historic Area. This soffit and fascia repair is a great example of how to deal with wood rot while maintaining a historic homes integrity. This blog details a problem (and solution!) common in many historic and older homes â Soffit and Fascia damage caused by a leaking gutter.