The inspector is requesting a letter regarding the boring and notching in the middle one-third of the roof rafter. The contractor did not follow the given instructions, and ½-inch holes have been bored at mid-span.
I found this guideline: Tip Sheet 11 – Notching and Boring of Wood Framing...
If we need to add a shear wall on the first floor of an existing building, how can the uplift force from strap HDs be restrained from affecting the area below the first floor