The answer:
The first goal is to keep all abrasive materials off the floor to avoid damage.
Use track-off matting at entries.
Require clean soft-soled footwear for gym users and provide mats for others walking to seating for games and events.
Wide-area treated dust mops are assets and microfiber dust mops will do ... — Lynn E. Krafft, ICAN/ATEX associate editor,
lekrafft@juno.com