Let me start with, I'm very new to wood working.
I've made some window sash's out of cypress. My intention was to use some kind of mechanical or chemical bond to attach the muntins to the stiles and rails. I've considered glue, dowel, or a tiny SS screw. These muntins are only 3/4" wide and then have the profile cut into them on 2 sides. Not much room for anything really.
The muntins are coped on the ends and fit snugly into the profile cut on the stiles and rails. It's occurred to me that as they fit into place like a jig saw puzzle they really can't be removed without first removing at least 2 panes of glass. My point is they can't just fall out as the coping cut locks them in.
My question is, do i really need any additional joinery here? If I glue them, I can't see them ever being removed without damaging them.