Are special considerations required for using a pive solar design and a strawbale design together?

Is there special considerations to consider when design a pive solar home made with straw bale construction.. specifically Would following general rules(intended for 2x4 or 2x6 construction) of a solar pive design.. lead to a overheated Interior environment.. due to the straw bale construction offering a 40-50r rating verse a 2x6 home with a r rating of r19...