 Where those screws go into the top part of that beam, they really start rotting out in there. Because any of these pressure-treated lumbers, they're treated, but the center core still doesn't get it. And so that gives a freeway right into it. These joist tapes really go in there and give you that sealed-off area. And so that way, when the screw goes through that to fasten those deck boards down, whether they're composite or wood or whatever...