We needed to replace the air conditioning evaporator coil and air handling element. In this house the cooling element is located inside the attic of the house. And up in the attic space is really tight. The house has 2x4 roof trusses, and those trusses are reinforced with an additional 2x4 attached to create a T-shaped cross section. I've never seen this type of construction before. See photos...
The reinforcement(2"x4" construction lumber) is attached as a T-Shape.
So why is that there? Is that a standard truss manufacturing technique? I'm guessing the addition is to prevent bowing (or failure in that mode...) My immediate problem is that with those elements there we are absolutely unable to snake the evaporator unit thru the trusses to even get them into the attic. There is not enough width between two adjacent trusses to push the unit through.
My tendency is to remove the top of the T on two adjacent truss elements and replace the top of the T-off center (think L shaped reinforcement...). As far as I can tell that will still perform the reinforcement function and allow for Heating Ventilation AirConditioning (HVAC) repair.