The pics show a view of such a roof a plan view of trusses and blocking at and near the intersect and a 3d model of the three pieces of 2x blocking that fills in for the panel nailing.
Roof truss ridge blocking.
Inspector want ridge blocking on truss roof.
Link is external and carried through to more recent versions is the use of blocking panels between roof trusses to connect the trusses to the braced wall panels below if the heel height is greater than 9.
Sounds as if you live in either a high wind area or a seismic zone and the roof is your shear diaphragm.
A complex roof with more than four hips and with valleys due to wall jogs means that there are usually cases where trusses don t conveniently come to a hip and ridge line junction.
Rafter blocking is an essential part of the roof framing process in that the blocks provide a stop for ceiling insulation and a continuous surface for the roof sheathing to be edge nailed to.
A continuous band rim or header joist or roof truss parallel to the braced wall panels shall be permitted to replace the blocking required by this section.
A new provision in the 2009 irc.
For trusses with heel heights less than 15 this blocking can be made of solid sawn dimensional lumber as shown in figure 1a.
Some may call these wood members blocking and deem them as optional.
Blocking or boundary member.
Each block is 2x4 or 2x6 depending on the size of the rafters and is secured to the top plate.
In my experience traveling across the country observing wood framed construction it was apparent that east of the rocky mountains structural wood members in line with supporting walls between roof framing cease to be installed.