I am confused as to the terms "sheet metal jacks" and "collars" used in
roofing flashing for vent pipes.
Can these be one unit?
Here's what I see: What looks like a "cone" attaced to the bottom of
flat flashing. So this piece is put over vent pipe and thus you have a
metal "bottom" and a "cone" that comes up a little ways on the pipe,
then the rest of the pipe protruding upwards.
So is the bottom part the "jack" and the "cone" the collar? What
confuses me is it looks preassembled to be one unit, but are the two
"parts" labeled differently or does this one unit have a name? Or are
these interchangeable terms?
Thanks. And before making fun of my newbieness, at least I didn't ask
what a vent cap was! :)