Looking for the right course of action here. Never dealt with this situation before during a remodel.
So I have a 1948 duplex. CMU foundation, double wythe structural brick on the 1st floor and standard wood framing on the 2nd floor.
We’re putting on a 2 story addition with crawlspace.
Now, the question here is how to properly tie the framed addition walls into the existing structure. I’m having a foundation contractor deal with the foundation (epoxy/rods), so that’s one less thing to do. My concern comes with tying the exterior 2×6 walls to the brick. On one side I just have 1 story of brick to deal with, however, on the other side I have the chimney to deal with all the way up. This is not an active chimney. It is simply used to vent the furnace and HW heater…and I’ll be converting to a high efficiency furnace at some point and moving the HW heater, so that I can abandon and cap the chimney for good.
Album of pics: http://imgur.com/a/GlHnG
Any questions, ask! Looking for the right way to do this to pass code. Do I simply drill holes in the brick, insert threaded rods w/ epoxy, caulk between brick and 2x6s, and tie my walls in that way? Any specifics to follow?