See above
As a builder, I found this easy to understand and an excellent way to continue the education process. Building is a constantly evolving discipline and the more tools we can add to our arsenal the better.
Good
Good presentation regarding roof venting.
I am a home owner of a century home about to embark on a whole house renovation (gut job) and wanted information about the types of un-vented roof/attic. Based on this presentation, I will be doing using closed foam spray insulation.
Yes, I recommend this course. You can reference my first comment.