I don’t think you want to caulk that. It is supposed to remain open so any water that gets behind the shower wall will be able to run into the shower pan.
I don’t think you want to caulk that. It is supposed to remain open so any water that gets behind the shower wall will be able to run into the shower pan.
Just talked to jayco motorized div. Customer service and the shower base extends about 1 1/2 inches up behind the shower wall so caulking seam is optional unless you are concerned about mildew.