Open up to ridge mansard

[Emplish]

Hello!

I'm planning to open up a mansard roof to the ridge and I'm unsure if these braces between the rafters contribute structurally.

They are attached with a nail on each side but have a larger dimension than the rafters' purlins.

Can I remove them or should I place them on the other side of the rafter and double them up for safety's sake?

 

[Emplish]

Clarification: I want to remove these. If they can't be removed, I want to move them to the top beam.

 

[LaT]

It should be possible.
I assume they are there because otherwise, it would be too far between the floor joists, which I assume were laid above.

 

[SågspånPappspikEternit]

Sidetreck: it is quite likely that the wall on the sectional drawing that runs continuously from the basement to the ground floor to the second floor is load-bearing. Don't just tear it down like that.