has anyone used foam window mouldings such as mouldex or other on their icf project.  I was thinking of using hardie plank for the siding and corners but I like the looks of the foam.  I was thinking of using sprayfoam on the back to attach the mouldings to the icf, but not sure if that would work or not.  any thoughts or experiences.  I am not stuccoing the building and I know these are used for that all the time

Thanks

Multipurpose Tile Thinset is all you need. Rasp the foam first to remove any sheen or residue