I was given a Michigan inspection "notice of correction" tag, stating:
- Hurricane clips/screws needed on rafters
- Carrier needs to be through bolted to post
- Need rafter ties/collar ties
I am looking for the correct code, exceptions, and verbiage for an attempt to provide an argument to the local building department for a review against #1 & #3. I assume #2 is probably legit.
I built a garage pole-barn style, with the help from my father. He is retired but has over 30 years in residential framing. He owns a code book from 2005 which doesn't have references to hurricane clips. I also looked in the two online code books for these requirements without success. Being the Building codes and Residential codes both from 2015 and effective.
The last time I was working professional in framing, about 2017, I definitely installed these metal strips. I remember they were meant to be applied on the inside of the wall from the top plates to the rafter.
That said I will emphasize I did not use walls but posts with purlins, and put a 2x10 as an outside wall header that the rafters are sitting on. Then I also have an inside header and a 2x6 block nailed between both headers then to the rafter. This, in my opinion, provides far superior protection against wall expansion and load (or uplift) forces. 
I was also under the belief that as I am using a beam in the center (the rafters are resting on top of the headers) and not butted to a ridge board (which in the scenario of a ridge board separation can occur), that collar ties are not necessary. As with the outer walls, I also used blocking for connecting the rafters to the headers/beam. 
I regards to the correction #2, I am assuming his use of the word carrier, is my headers being used as beams to carrier the rafters. The center beams span 17 feet, the back wall spans 8 feet between posts, the front has posts 4 feet from corners and then 9 feet in for garage doors. I have 5 screw/nails in each header at each post. The center beams I also put an extra metal carrying flange, with 4 additional screws. I am not sure if this bolt requirement is for all posts or just those in the center. Thoughts?
