I'll be going up to Tenn to resume work on my ICF house this month.
My 2 goals are to wire the inside of the house and get the outside protected and ready for stone. Blocks are starting to discolor.

Thinking of installing wire lath with SS screws then scratch coat. 

My question is should I use the paper underlayment with the lath or just the plain wire lath.

I know some would set the stone direct to the ICf after rasping but it may be awhile before I get to the stone work.

Thanks
 

Clean , rasp and link the foam. Wire only is OK. For future reference, suggest you use a cheap exterior latex paint coating over foam that you are not going to finish right away. Keeps the UV away and slows degradation of the EPS.

FlaICF. That's a great idea about painting the foam to protect the EPS until ready to do stonework. Just get the 5 gallon Oops paint for $10 at Home Depot or Lowe's and when the Hot Pink runs out kick in with the Canary Yellow. Could be a theme like agricultural grafitti or a country mural! I'll be in the same boat as Raider Bill; will take some time to get to stonework. Might take a bit of convincing to get my wife to go along. The farmers out here would probably think some retired hippie invaded. The possibilities are endless... Thanks!!