I did an inspection on a newer townhouse where a vinyl deck membrane was used for all of the roofing. At the plumbing vent penetrations the membrane was cut and glued to the pipe without any other flashing visible. I tried searching the installation instructions for 5 different membranes that are commonly used and was not able to find any information on plumbing vent flashing details. Does anyone have any information how this should be done.
Thanks for your help.