Start with conditions, not a product
Staining on attic sheathing or rafters is the visible symptom, not the diagnosis. The real work is tracing water back to its entry point, tracking attic humidity, judging how far it has spread into framing and insulation, containing the space properly, and verifying the result once the work is finished.
Build a complete scope
- What is wetting the space, resolved before cleaning is priced
- Whether limestone channels are delivering water from beyond the lot line
- The containment barrier and the air path while work proceeds
- The cut line between salvage and disposal, and what sets it
- Verification afterward, plus the crawl space or venting fix that stops a repeat
Lexington context
Most of Lexington's housing stock was built during the 1960s-through-1990s subdivision wave inside the urban growth boundary, an era of roof framing and attic ventilation that wasn't always sized for Kentucky's humid summers, and long-standing brick homes in the older in-town neighborhoods add a second, older category of roofline and attic detail entirely.