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Walls running parallel to the roof trusses are not load bearing, if the roof trusses run parallel on both sides of the wall.

Walls perpendicular to roof trusses, where there are identical trusses with no wall or beam to support them in other portions of the house, are usually not load bearing, but only someone with the skills to trace the load path (i.e. how does the weight of the roof, snow load, etc. get to the foundation) can determine that for sure.


That said, there's no header beam over the window opening, which is a good indication the wall is not load bearing.
 

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It's hard to see from your attic pictures, but find out if the joists over this room run perpendicular to the wall in question, and/or if there's a 4x beam on top of the wall in question.
Just as mentioned above, the absence of a header over the window suggesting it's not a bearing wall.
Always double check.
 

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It is holding up the ceiling in the other room.

So how much are you looking at removing. If you leave some of the side wall and add a beam you could remove the front wall.
 

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Now that we can see it from the other side, one of those walls likely supports the ceiling joists in the room. The other probably doesn't support much, except a strip of the ceiling between the joist parallel to it and the wall. In other words, you probably can't remove those walls without replacing them with beams and a post at the corner, unless you're taking down the ceiling.
 

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Now that we can see it from the other side, one of those walls likely supports the ceiling joists in the room. The other probably doesn't support much, except a strip of the ceiling between the joist parallel to it and the wall. In other words, you probably can't remove those walls without replacing them with beams and a post at the corner, unless you're taking down the ceiling.

Do you think an engineer would let them hang the ceiling off the trusses?
The drywall would be the same so it would just be the weight of the lumber on each truss?
 

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Probably, but an engineer would have to look at the structural system as a whole to say for sure. Those appear to be scissor trusses, which can sometimes be fairly sensitive to unbalanced loads.
They are likely more out of balance now with drywall that are 75 pounds per 8 ft sheet. :smile:
 

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They are likely more out of balance now with drywall that are 75 pounds per 8 ft sheet.

Maybe, but without looking at what's carrying the weight and how it's supported now, it's impossible to say whether the load is unbalanced now or whether it would be after removing the walls. Presumably, there are short studs that connect the ceiling joists to the trusses in some fashion, so that there is something to attach the drywall to in that 2 or 3 feet above the ceiling. How sturdy those connections are, and how they affect the trusses, are anybody's guess at this point.
 
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