For the system beneath the green
Turf underlay & drainage layers
Discuss cushioning and water movement alongside your turf choice.
Enquire about turf underlay & drainage layers
Know what the layer needs to do.
Underlay may serve different purposes in different systems. An indoor training area, rooftop amenity and play surface can require very different materials. Start by explaining the problem you need to solve rather than assuming a single layer will suit every application.
Height, drainage and cushioning requirements.
- Describe the substrate and finished-height limits.
- Identify whether the priority is drainage, cushioning or another requirement.
- Request compatibility and relevant test information for the full system.
Check how the extra layer changes the space.
Adding a layer changes thresholds, edge details and how water moves. On a building, it must also work with the existing assembly and maintenance requirements. Confirm the proposed layer, thickness and installation method as part of your project-specific quote.
Does underlay automatically make turf a safety surface?
No. A play or sport application may require a particular tested assembly. An unspecified cushioning layer should not be treated as evidence of compliance.
