RubberGard™ EPDM Pre-Taped (PT) Membrane is easier and faster to install due to the factory installed seam tape.RubberGard EPDM PT (60-mil) systems are eligible for a Red Shield™ Warranty up to 20 years. RubberGard EPDM Platinum (90-mil) PT membranes, just like all Platinum EPDM membranes, qualify for a 30-year warranty.