Hi Terr,
Thanks for taking the time to review our Marquee Paint. I'm sorry to hear about the coverage and roller marks you experienced with it. If multiple coats don't help alleviate the roller marks, then the surface may need to be primed and sealed with a separate product. Something like our Multi-Surface Primer would work well:
https://thd.co/2MCaqqE
This will help to seal the surface to prevent the previous marks and color from showing through. After the surface has been primed, another coat of Marquee Paint can be used. If you'd like, please feel free to reach out to our Customer Care Department for any questions or assistance with your project. Have a good rest of your day, and thanks again for your feedback - Vince