Has anyone fitted cat proof fencing? Any recommendations?

[Minimilia]

We're looking to fit some cat proof fencing on top of our existing wooden fence panels, and there seems to be a fair bit of choice. Has anyone had this fitted? If so would you recommend it, and which company did you use?
Cat tax of our little boy when on down time from trying to get on the roof without being able to get back down again (hence the need for cat proof fencing)

I've used Katzecure, whose fencing is the horizontal rollers, which rotate freely. They do a survey, and fit it if you ask for it. It has kept our cat in for three years.