Gotta love flat roofing, lick and stick epdm lol sry done alot of it, Prolly favorite my roof membrane was actually thinking making a water proof floor and up walls in grow room lol this sites awesome I litterally picked up growing overnight too. Best advice I can say is grow organic makes very simple water when dry I tried to wrap my head around to much to fast and wasted alot of time. I did learn alot but still I'm loving organic dry amendments just a thought man good luck
Sent from my Z978 using Tapatalk