Slab edge insulation and termites in Climate Zone 3A
My basement walls should be poured by the end of the month and I am wanting to get the details right in CZ 3A.
While slab insulation is not “required” for my climate zone, I am considering it for comfort reasons and to insure against the future (better safe than sorry). However, termites are common in my area and the house is on a wooded lot that will have plenty of food for them, so I am concerned about them coming up the edge insulation into the stud wall noted on the attached diagram.
Assuming I can properly seal this area from termite intrusion via a physical barrier (perhaps in concert with a chemical one), what thickness of insulation should I use on the edge of and under the slab in CZ 3A?
I did find this article on the site, but mostly it was dealing with exterior insulation: https://www.greenbuildingadvisor.com/community/forum/gba-pro-help/26691/termite-and-insect-infestations-using-external-rigid-foam-foundat