h:outputStylesheet inside ui:repeat

I'm trying to use to output a stylesheet link for every element of an ArrayList. This code produces no result:

<ui:repeat value="#{includer.css}" var="ss">
  <h:outputStylesheet name="#{ss}" library="css" />
</ui:repeat> 

However, if i change the Strings in the ArrayList to be full paths and replace h:outputStylesheet with plain html like :

<ui:repeat value="#{includer.css}" var="ss">
  <link type="text/css" rel="stylesheet" href="${ss}" />
</ui:repeat> 

then it works as expected. The problem with this is i have some EL expressions in some css files and it seems they are not being evaluated, I assume because i'm referencing them directly like that.

Thanks for any insight.