Planning to finishout a basement with stud walls on concrete floor. Planning to use Tapcon fasteners and treated 2x4 for bottom plate. Trying to protect for termites and moisture from the concrete. Thought about using a sill gasket. That would help the moisture but what about termites? I asked people at Home Depot about a termite shield. All I got was a blank look. What would be a good material for a barrier?