Roof Paint/Coating?

Does anyone know the difference between roof paint and coating?
Many years ago i used something that was made of tar, fiberglass and plus something that made it dry shiny silver. I think the "fiberglass" was of a fiber nature. It was applied with a brush, but i donot remember what kind of brush.
Thank you
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload 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.