Composite dimensional lumber for deck sleepers

I want to install a composite deck (probably EON) over an EPDM substrate.
Since puncturing the surface is out of the question, I plan to glue sleepers to an EPDM pad which in turn gets glued to the EPDM surface with rubber-to-rubber adhesive.
I've seen Wolmanized lumber used for sleepers, but I don't trust it not to warp and twist unless seriously screwed down, which can't be done here.
So I'm thinking - why not a composite dimensional 2x, since it should be dimensionally stable enough to glue down and stay put.
Is there a composite that I can use for sleepers to screw deck boards onto?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.