Are you saying the new roof sits directly on top of that wall?
I see several options on this, First of all is the basics of building 2 temp walls on each side.
Now if the new roof is sitting right on that wall you want yo remove, You need to go up in the attic and build 2 more temp walls right on top of the ones below., A little more tricky because of the angle of the roof, But just temporary to support the roof while you cut out the wall.
At this point, you need to know what size beam you need to support the weight.
And get the lvm or whatever you will use to make the beam on site And measure it.
And maybe before remove the wall below, go up in the attic and cut the braces for the roof at correct hight., add a new bottom plate to the braces.
Now go down stairs and cut the 2x8 joist back to length needed to slide new beam up in the slot you just created.. Put the beam in place, use hangers for the 2x8 and the roof sits on the beam. Framing is easy and solved.
What about the foundation?
When you open a wall that wide ... 15' all the weight is being transferred to the jack studs on 2 ends.
You will need a proper footing under those studs.
So framing is easy, lets talk current floor and foundation.
I see several options on this, First of all is the basics of building 2 temp walls on each side.
Now if the new roof is sitting right on that wall you want yo remove, You need to go up in the attic and build 2 more temp walls right on top of the ones below., A little more tricky because of the angle of the roof, But just temporary to support the roof while you cut out the wall.
At this point, you need to know what size beam you need to support the weight.
And get the lvm or whatever you will use to make the beam on site And measure it.
And maybe before remove the wall below, go up in the attic and cut the braces for the roof at correct hight., add a new bottom plate to the braces.
Now go down stairs and cut the 2x8 joist back to length needed to slide new beam up in the slot you just created.. Put the beam in place, use hangers for the 2x8 and the roof sits on the beam. Framing is easy and solved.
What about the foundation?
When you open a wall that wide ... 15' all the weight is being transferred to the jack studs on 2 ends.
You will need a proper footing under those studs.
So framing is easy, lets talk current floor and foundation.
