I have a 1.5-story house built in the mid-70s. The house is almost 10 meters wide, and on the upper floor, the walls are relatively far inside the house, about 2.5 meters from the eaves. So the interior width of the upper floor is only about 5 meters (10m-2*2.5m).
I would like to move the walls out so that we get more space on the upper floor (at least for one of the rooms - I want to divide a bedroom that currently stretches from wall to wall). This would mean that the ceiling height becomes lower the further out towards the eaves you go, but I would like to move the walls so that they might be 1.0 m from the eaves. This way, I would get an interior floor width of about 7.5-8m on the upper floor.
My problem, however, is that I have trusses of the framework type (see link),
http://www.roslagshus.se/takstolstyper and this construction has load-bearing supports. What I would like to do is move the supports from the current position (2.5 m from the eaves, 2.5 m to the ridge). I have no load-bearing walls on the ground floor. The current trusses are spaced at 60cm center to center and have dimensions of 195*45.
What options do I have? I assume I can't just move the supports, which I assume hold up the floor and support the roof depending on the load.
One option I have considered is moving the supports about 1.5m in each wall and then placing a new support in the middle of the truss from the floor beam up to the collar beam or ridge. I will have a wall in the middle of the bedroom anyway.
Is there a good designer/structural engineer I can turn to in the 08 area?
Has anyone done something similar?