Multipoint Hardware Question re French Doors
I'm confused about hardware for our multipoint french doors and hope someone has some insight.
We don't need keyed on the exterior as they lead out to an upper deck.
On the active door we need a thumbturn on the inside.... but what does the thumbturn actually do? Keep the handle from rotating or throw a deadbolt?
Since you lift the handle to lock, what's the thumbturn doing?
And my big question is what doe we choose for the secondary door in the pair? Does it also get a thumbturn on the interior? Lifting up the handle locks it and it can't be opened unless the other door is opened so .....
This shouldn't be so confusing!!! They're only door handles!!