Floor truss question
Our house is 32 feet wide with a 3-ply 16 inch LVL 14 feet from the outside wall to support the 16" floor trusses. They notched the trusses approximately 8" to fit down over the LVL which we requested not to so that we could get our sewer line out over the LVL as well as fitting duct work over the LVL. We have a wood stove and hearth that was placed in the 14 foot area of the house next to the exterior wall that they decided to use four 2-ply floor trusses to support which was fine. The truss company said the support truss had to extend the entire width of the house and that stopping them at the 3-ply LVL wouldn't have been supportive. I have been in the construction business for 20 years and have seen several instances where stopping the support at a beam like this was fairly common. However, I'm not an engineer. My questions are: was it necessary to run those support trusses the entire width of the house or could they have stopped them at the beam? and: can a top chord load bearing truss that has been notched carry as much weight as the same truss (minus the notch) that sits on top of the LVL? Our truss company knows that we are upset because of the notches and will not answer our questions so any input would be greatly appreciated..