
Residue Around Exhaust Fans
Kitchen exhaust at plant cafeterias, dust collectors, and process vents drop grease, oil, and residue near their curbs. EPDM breaks down under oily residue and TPO only partly resists it, so the sheet softens, swells, and splits in a ring around each problem fan.
Usually Means: A PVC or protective ring around those fans, with grease containment on the fan.




