Dry rot repair for San Francisco homes, common in foggy western neighborhoods like the Sunset and Richmond. We open the wall, replace compromised framing and sheathing, address the moisture source, and restore the exterior properly.
Dry rot in San Francisco is almost always a moisture problem first and a wood problem second. The rot is the symptom, failed flashing, missing caulk, paint past its lifespan, a window not properly sealed. If we don't fix the source, the next round of rot starts immediately.
We open up the affected area, replace the rotted framing and sheathing, address the moisture source, and restore the exterior with proper flashing, weather-resistive barrier, and finish.
Identify the extent of the rot and the moisture source causing it, usually some combination of failed flashing, caulk, or paint.
Remove siding, sheathing, and trim as needed to expose the full extent of the damage. The visible rot is usually smaller than what's behind it.
Replace rotted framing members, sheathing, and trim with new pressure-treated and properly sized lumber.
Fix the underlying water intrusion, new flashing, new caulk, new weather-resistive barrier, whatever the source is.
Restore siding and trim to match the original, properly flashed and integrated this time.
Prime and paint the repaired area so it's protected from the next round of moisture.
Dry rot usually hides behind siding, around windows, or at deck-to-wall connections, anywhere water gets in and doesn't dry out. The repair means opening the envelope, removing compromised framing and sheathing, addressing the moisture source, and restoring the exterior properly. Skipping the moisture diagnosis means it comes back.
Discuss your project →Send a few details and Michael will reach out to schedule an on-site walk-through. Or call us directly at (415) 218-9270.