The siding next to my chimney is missing J-channel. Its been like this
since I moved in. Somebody tried to caulk it apparantly. Does a j-
channel serve any purpose other than aesthetics and looks? Or does it
actually serve a wetherproofing purpose?
This is on the side of my house where you really can't see it and no
one really goes there, so I'm trying to figure out is it worth
fixing.

http://picasaweb.google.com/mikerock92/JSIDING#