Had to do some sealing today and I came across this info which worked well to remove the butyl and thought I'd share it with u all cost is just pennies and couldn't believe how good it worked, first s...
There's only a thin sheet of laum glued to the Styrofoam I thought I'd drill through and screw into that but when I thought about it I used a slightly larger screw and it went together great and pulled everything tight, problem fixed