ceiling joist change up?

[Clint007]

Hi, I'm prepping to install a new Safe Racks unit in my garage. I am pretty confident I've found most of the joists, but near a corner bump-out, where there should be a joist 24" from it's neighbor...there isn't...according to my Zircon stud finder in sensitive mode. There are apparently joists now running at a 90 degree different direction in that section, near this corner. ?? This is a the interface between a slightly longer 3rd garage space to the rest of the garage. The garage sticks 'out' more into my driveway at this corner, so I wonder if there is some goofy joist revision to account for this...

(I'm not wise in these matters, I'm a weekend warrior.....)

Is it common to have these spaced differently near bumped out corners, or even change direction altogether?

Thanks

Clint

 

[notso]

Hip Roof?

 

[readhead]

Not unusual. Pics would help. Do you have attic access?

 

[Clint007]

My attic is 20" deep in blown insulation and cramped access. Plus I have a charges water sprinkler system. Not going up there !

I'll get some pics.

Yes it's a hipped roof atop the garage

Thx

 

[Clint007]

http://s1182.photobucket.com/user/darkrayz1/library/?sort=3&page=1

I drew in crudely the location and direction change of the joists. That's what I concluded using my Zircon and also pounding small nails into the ceiling there.

Before I mount this rack I wanted as much reassurance that this is correct. Or, I was wondering if I was finding non-weightbearing wood that shouldn't be used to mount the rack...

thanks guys!

C