Installing underlayment on concrete, confused about taping perimeter

Hi hope all is well. I’m installing underlayment  for lvp on a concrete floor. Instructions say to tape the perimeter with waterproof tape as well. I’m confused here, if it… Hi hope all is well. I’m installing underlayment  for lvp on a concrete floor. Instructions say to tape the perimeter with waterproof tape as well. I’m confused here, if it…Read MoreGreenBuildingAdvisor