Read the ground before the mix design
Wake County's red Piedmont clay compacts unevenly and holds water after summer downpours, so subgrade prep, drainage slope, and control joints decide performance more than the surface finish does.
Build a complete scope
- The recorded plat checked for easements before any layout is set
- Subgrade preparation, since clay decides how flatwork ages here
- Where added impervious surface sends water on an engineered lot
- Reinforcement, mix, jointing and curing, stated rather than assumed
- Root conflicts with mature landscaping, cleanup, and warranty terms
Cary context
Piedmont clay is the subgrade that decides how flatwork ages here, and it is unforgiving in a specific way: it holds water rather than draining, then swells and shrinks with the seasons, so a slab or driveway placed without addressing what is underneath will move regardless of how well the surface was finished. Cary's planned-neighborhood pattern adds two practical constraints that an older city does not. Lots are frequently tight and carry recorded drainage and utility easements, so where new impervious surface may go is a siting question before it is a pour; and adding hard surface changes where storm runoff goes on a lot that was graded as part of an engineered subdivision plan. Mature landscaping supplies the third variable, since established root systems both lift existing slabs and complicate excavation for new ones.