Can't remember what size brush we used but get a cheap long pile roller set and a couple of brushes and your good to go.
We gave it a quick clean the day before then repaired a few holes before sweeping it then put two coats on, in my after pic it still looks like the oil is showing through but I had just flooded those areas with the tarmaseal as they were damaged from the oil so I wanted to build them up a bit, looked great the next day.
