Flat and stable
The base should not contain abrupt steps, loose material, large depressions or uncontrolled movement that can telegraph through the modular surface.
Problem Solvers / Global
What base does modular sports flooring need?
Modular tiles can be forgiving in some ways, but they still need a stable, appropriately level and drained base.
Global / overseas search owner Manual project review Exact-system evidence only
Direct answer
The short version.
Concrete and asphalt are common bases, but suitability depends on flatness, cracks, movement, drainage, thresholds and the exact tile system. Modular flooring should not be used to hide a failing or waterlogged substrate.
Project decision
What matters before product selection.
Use these points to structure the first project conversation. Final suitability stays tied to the actual site, selected system and local project team.
Drainage
Open-joint tiles may let water through, but the water still needs somewhere to go beneath and beyond the court.
Transitions
Doorways, ramps, court edges, drains and adjacent surfaces need finished levels coordinated with the tile thickness.
Project brief
Information worth collecting before quotation.
01Concrete / asphalt / other
02Cracks
03Flatness
04Drainage
05Existing coatings
06Thresholds
07Court edges
08Photos and dimensions
Frequently asked
Answers without oversimplifying the project.
Can modular tiles go over cracked asphalt?
Possibly for minor stable defects, but significant cracking or movement should be assessed and repaired.
Do open tiles solve puddling?
No. They can allow water through the surface, but poor base drainage can remain a problem.
Should the base be pressure washed?
Preparation depends on the exact product and substrate; follow the selected system's installation instructions.
Next step
Turn the research into a real project brief.
Send the site, dimensions, intended use, quantities and known local requirements. Apollo will review the relevant product pathway and keep local engineering, approvals and site-work responsibilities explicit.