I am installing an addition onto my house, it's about 40 ft long by 12 feet wide. I believe the roof style is called a "patio roof", where the (3) 2 x 10 ledgers you see are attached on the existing roof, and the new 2x10 rafters attach to them. Although you can't see it in the photo, I also will be supporting the new rafters right from the top plate of the existing house wall, so they will be supported in 3 places (the ledgers, the existinig house wall, and the new exterior wall). I was going to put blocking between the rafters as well.
My question is how to fasten the rafters to the ledgers. Obviously toenails from either side is the easiest, I guess... my thought was to place two of the brackets shown in the photo, maybe one on either side... one on the middle ledger 2x10 and one on the lower, and fasten those with 1/4" 1 1/2" lag screws? The part number of that bracket is ML26, and then put a few toneils on the part where there is no bracket.
I do have a permit, and plans, which were approved but the fasteners just have to be up to the international building code. I was wondering how some folks with experience in this would make those attachments, in order to do a good job and satisfy the building inspector.