abusementpark - this is a common bond wall (with header course every 6-7 courses) and appears to be partially grouted between wythes, so no real collar.
msquared48 (Mike) - thanks for the references and Tacoma printout!!!
I am looking for some help specifying through bolts in old (1940s) clay brick for a 2x roof ledger. Double wythe, 8 inch wall. The main loading will be from snow load. I am probably going to use somewhere between 300-600 psi for the old brick just because it is old based on another forum - it...
Not saying you shouldn't expand - just seems that you are a little uncertain as to what to do. I am looking at starting on my own when the time comes. I plan to bootstrap my startup similar to what it sounds like you are doing. One of the big resources I have been using is advice from a guy...