SIP diagnostic, repair/replacement guidance needed in WNC

A homeowner in western North Carolina built a small, 800-square-foot cabin using a prefab shell with structural insulated panels (SIPs) for the roof — factory-made panels with rigid foam sandwiched between two structural boards. They paid extra for a cold/winter barrier, but they're now seeing water drip lines running down several of the roof rafters. They believe the problem may trace back to how the builder installed the panels — possibly missing seals or strapping where panels meet.

This is a real-world building question, not a program or policy update. The homeowner is asking the online community for help finding someone qualified to diagnose the leak, figure out whether it's a sealing failure, a strapping issue, or something else in the SIP assembly, and recommend repair or replacement. So far, local inquiries in their area have not turned up anyone able to help.

For homeowners with SIP roofs or walls, this is a reminder that panel joints and seals matter as much as the panels themselves — moisture getting behind or between panels can show up as drips or stains well after construction, and tracking down the cause often requires someone with specific SIP diagnostic experience rather than a general contractor. If your own home has SIP construction, it's worth knowing this is a specialized enough issue that finding the right diagnostic help can take some searching.