1. Stability and Firmness
- The surface needs to be solid and supportive, so mobility devices don’t sink or get stuck.
- A well-compacted base and evenly applied infill help maintain stability over time.
2. Pile Height and Infill Choices
- Shorter pile heights (typically 1.25 inches or less) make it easier to move across the surface.
- Infills, such as sand or coated rubber granules, should be evenly spread to prevent uneven areas.
- If infill is too loose or deep, it can make movement difficult.
3. Smooth Transitions and Edging
- ADA guidelines require minimal changes in height (less than 1/4 inch without a beveled edge or up to 1/2 inch with a beveled edge) to allow for smooth movement.
- Proper edging helps connect artificial grass seamlessly to surrounding surfaces like concrete, rubber tiles, or pathways.
4. Impact Protection with ASTM F1292
- While ASTM F1951 ensures accessibility, ASTM F1292 deals with impact protection and is mostly about shock pads or underlayment, not the turf itself.
- To meet ASTM F1292, artificial grass installations may need extra padding beneath the surface to absorb falls and reduce injury risks.
5. Drainage and Maintenance
- Good drainage keeps the surface firm and prevents hazards like pooling water.
- Regular upkeep, such as infill replacement and leveling, helps maintain compliance over time.