Valley
The internal angle where two roof slopes meet, channeling water toward the eave.
Valleys are high-wear areas requiring ice & water shield underlayment and either closed-cut, woven, or open-metal valley flashing. Open-metal valleys with W-valley flashing are the highest-warranty option.
Related terms
RoofGenius AI
See valley on a real claim — in 60 seconds.
Upload a closed insurance estimate and our AI shows you exactly which line items the carrier missed, with the IRC code citation and a Xactimate-ready supplement letter.
Start free trial — no credit card