Trex RainEscape Butyl Caulk

As expensive as this stuff is, it should not leak around the inside plastic pusher piece that the caulk gun pushes against. Also, it shouldn't have the trapped air pockets in each tube. Otherwise it is some really great stuff for use on the Tree Rain Escapes system.

Easy to use product to help attach trex black underlay that attaches to the top of your truss.Stays sticky allowing for reset of material during install if required.