repairing the bottom chord
I need help on what I should do. Now I wouldn't necessarily call it a bottom chord because they were not connected to the trusses, 2x4's were laid from top plate to top plate with supports going to the top chord. My trusses were made on site and are constructed of 2x6's The ceiling was sagged bad so I pulled down all the plaster and removed the 2x4 supports. Now I am trying to rebuild. I am going to use 20' 2x6 to span the width of the room and run new supports in a w. My question is should I attach the 2x6's to the side of the truss or the bottom. My ceiling is over 8 foot so connecting it to the bottom wouldn't be a problem and I'm building a w for support. The problem I have with connecting them to the side is I worry about proper insulation because I live in northern WI.