Basement XPS Insulation Installation
I've seen a lot of postings on this topic, but like others, I still have a few questions. I live in the metro area in Minnesota, and plan on installing 2" XPS insulation directly against the cinder block walls in my basement (circa 1964), followed be 2x4 walls with drywall. My question has to deal with the nature of a block wall having lots of cavities with the mortar joints.
1. If I use an adhesive to glue the XPS to the walls, will there be an issue with the small gaps at the mortar joints condensing water?
2. Do I need to seal the top and bottom edges with a caulk?
3. Do I butt the XPS all the way to the floor, or do I leave a gap? I've heard about capillaries and rising damp, but do not fully understand what they mean.
Thanks in advance!