I have heard that subterraneam termites are not a major problem where you
are, but here in Ga. and all accross the S/E U.S. they are.
I have seen a few ICF structures before, but not many.
Our concerns with ICF’s are the same as EIFS, in that when in contact with the earth, the designed material acts as a raceway for TC activity. I’ve heard about termiticide formulations supposedly added into the manufacturing of the material, but I have my doubts about its true effectiveness.
The most popular treatment method is a chemical barrier (termidor or premise) on both sides of the material, but sometimes that’s not physically possible and the use of a baiting system (any), is like spitting in the wind. That means the owner is or can be vulnerable forever, simply due to design choices by the builder.
What problems, if any, have you or others found.
By the way, my nephew has lived in CO. (Evergreen & now Durango) since graduation from UGA in 1999, and has had problems with termite infestations in both houses. Evergreen was less than 5yrs, Durango 25+ (downtown) and both were crawl spaces.