An old slab can sometimes support a new finish, but cracks, movement, drainage, height and door clearances must be assessed first.
What to account for
Determine why the slab cracked or settled before hiding it.
Adding pavers, tile or decking raises the surface and may create threshold, stair or moisture problems.
Preserve drainage and inspection access around the building.
Questions to settle before work begins
- Is the slab stable through seasons?
- Can the added system drain and dry?
- Will new height conflict with siding, doors or guards?
Common planning failures
- Covering active settlement
- Trapping water between layers
- Reducing clearance below doors or wall finishes
Compare options on the same basis
Write down the intended use, site limits, maintenance expectations and approval assumptions before comparing products or quotations. Use the same dimensions and performance requirements for every option. A useful comparison notes what supports the work, how water leaves, what must remain accessible, which components carry safety functions, and what the owner will need to inspect or renew later.
Before materials are ordered
Confirm final elevations, transitions, clearances and product availability. Review the current installation instructions for every proprietary component and check that the planned base, framing, fasteners, finishes and accessories are compatible. Record any allowance or unresolved condition in writing so it does not quietly become an expensive change after excavation or demolition begins.
Keep a project record
Save the site measurements, product names, installation manuals, approved drawings, permit and inspection records, photos of concealed work, contractor changes and warranty documents. Add photographs before surfaces or trim conceal drainage, flashing, connectors, wiring or foundations. These records make later maintenance, repairs and ownership changes much easier.
Know when to stop
Pause the project when structural framing cannot be identified, soil or drainage conditions are uncertain, utilities may be affected, a safety barrier is involved, or the planned work conflicts with product instructions. Ask the relevant building authority, engineer, licensed trade or manufacturer for project-specific direction. Restrict use immediately if an existing elevated structure moves, a guard is loose, stairs are unstable or significant decay is visible.