Temporary wall support question
I will be removing 23’ of brick/block exterior wall, replacing it with a wood framed LB wall (to allow various access points to new addition). Inside the house, I’ve installed a temporary wall to take the load of the exterior wall once removed. The ‘load’ in this case is an attic space and roof…not second story livable space. The temporary wall consists of a double 2x6 header, and jack post every 4’, sitting on a double 2x bottom plate. The temporary wall sits 1.5’ from interior of existing LB wall, and in parallel.
The existing situation is this - the ceiling joist and rafter meet on top of the block/brick wall, are nailed together and toe-nailed into the top plate (normal stuff). Both, ceiling joist and rafter bear downward load on the exterior block/brick wall at that meeting point (normal stuff). Once the LB wall is removed, downward load shifts 1.5’ back to my temporary wall. Along with that, the nailed ceiling-joist/rafter connection has lost its support (block/brick wall) and the nailed connection itself becomes stressed/loaded by the rafters and everything they support (sheathing and roofing).
Question: Does additional temporary support need to extend from top of the temporary wall (top of double 2x6) through the attic, and to the rafters so that the nailed ceiling joist/rafter connection doesn’t take load that it cannot handle? If so, how is this typically done...just some 2x supports from ceiling joist to rafter placed directly above temporary wall?