That’s because the city adds mulch to the playgrounds annually, and replaces it every three years. The rubber mulch is supposed to be maintenance free for up to five years, Hecker said.

No Fault playground safety surfacing is a unique combination of ... bonded and loose-fill rubber mulch. Learn more at www.nofault.com. Markets Insider and Business Insider Editorial Teams were ...

No Fault playground safety surfacing is a unique combination of ethylene propylene diene monomer (EPDM) or thermoplastic vulcanizates (TPV) rubber granules and a cushion layer of shredded recycled ...