What a year in this climate reveals
Settlement cracks at corners and seams, doors and windows that no longer latch square, nail pops through drywall, grout and caulk failures in wet areas, HVAC performance after a full Carolina summer and a winter, grading that has settled and now drains toward the house, and roof or flashing details that only leak under sustained rain.
Why month eleven specifically
It gives you a few weeks to submit the claim, let the builder schedule, and get the work done before the warranty date passes. Waiting until month twelve leaves no room, and builders schedule warranty work around new construction.
Submitting a claim that gets taken seriously
A photo, a location and a plain description of the defect. Warranty departments handle a lot of vague complaints. A documented list gets triaged faster and argued with less.
What is usually not covered
Normal maintenance, cosmetic wear and anything caused by how the home was used are generally excluded. We describe findings clearly enough that you can tell which category each one falls into before you spend time on it.
Building the claim list your builder will act on
Warranty departments respond to specificity. Group the findings by trade, because that is how the builder will dispatch them, and put the location and photo with each one. Submit it in writing with a date, and keep a copy. If items get deferred past your warranty expiration, that written submission inside the window is what protects you. Follow up on anything that has not been scheduled two weeks out, since warranty work loses to new construction on a builder's calendar every time.