I am remodeling my house down to the studs.  Put In cellulose insulation and OSB.  Going with stucco on bottom half. I read that is a dangerous combo without an airgap.  So I forked out the bucks and bought Homeslicker stone and stuccoto create a 1/4 inch air and rain gap. We have installed standard tyvek and have the  home slicker stone and stucco over it.  So my big question is do we need another layer of felt down on top of the homeslicker or is the layer of stucco blocking fabric good enough on the homeslicker product ? To be more explicit.  Code requires two layers of felt due to the fact that stucco binds to the first layer leaving the second an intact weather barrier.  Is this kind of protection needed with homeslicker stone and stucco product?  Would adding a layer of felt on the outside of the homeslicker air gap creat some kind of unintended consequences.

I believe that the Homeslicker instructions show no additional layers - I'd try to stick to that.