I live in south-central Illinois, and the house is on top of a hill, so we get a lot of wind. The house is cold in the winter - partly because it is on slab and partly because it is pretty drafty. Most of the windows are in decent shape (Anderson dual pane) and don't leak much air. The house was built in 1965. Exterior is mostly board and batten wood siding (both boards and battens are a full 1" thick, boards are 12" wide). The house is quite drafty, and I'm considering 3 options. Labor cost is not a huge issue - I have two kids in their late teens.
1) Carefully remove siding boards, install housewrap, and reinstall the siding. May need to find longer nails, or add some construction adhesive to the nail holes to make the nails hold.
2) Remove the battens and use caulk or sealing foam to seal between the boards before reinstalling battens. This won't reduce air infiltration around the bottom of the siding.
3) Just use foam sealer around all the outlets and accept some draftiness.
Anyone have advice about options 1 and 2?