How to Repair a Shed Roof (Day 2)

In this video, I mostly show the process of the demolition and rafter replacement of my shed roof. This is day two of the "How to Repair a Shed Roof" series.
Opening music: "Extreme Ways" by Moby

[@swizzleproxi4810]

What mm thickness are thoes OSB boards?

[@HandymanSam]

7/16” or approximately 11 mm