Taller walls - help

[k54kenny]

Hi,
We are converting from an 8' flat ceiling to a 12' vaulted and have to build up the existing interior non-load bearing walls.
1- what is the proper terminology for the built up wall?
2- I heard about a thing called "knee action" at the junction between the existing wall and the build-up. What is the most cost effective and/or effective way of preventing buckling.
3- What is 'ballooning' the wall to the ceiling?
Thanks for any ideas,
-kenny-

[Rich]

1. It's essentially platform framing with the floor in between. There's probably a 100 different terms people use - I call it a pony wall.. hence "pony up" the wall.
2. Making sure that sheathing (drywall) goes across the joint.. decreasing the spacing of the drywall screws 2' above and below the joint. If there are end walls apply a full height stud.
3. That's removing the existing wall and running studs all the way from floor to ceiling. This is an older method of framing where 2 story buildings were built from the foundation up to the upper story top plate and the floor was "let in" to the studs. Not seen much anymore because of the length of the framing members.

[mjpliv]

Your post mentions that you are extending a wall that is not load bearing. In that case I wouldn't be too concerned about any hinge action on the wall. I would assume that both sides of the wall will be finished. Addressing hinge issues in a load bearing wall is important though.

[k54kenny]

Thanks, the consensus amongst all those I have randomly assaulted with this question is that the key issue is that these are NON-weight bearing walls. The local building dept inspector says there are many ways to address the issue but she couldn't recommend any particular method or person. In effect, 'go design it and then we'll tell you if it is OK.' Oh well, I guess I'll try that computer program (Punch Pro Platinum) and see what it does. Thanks again, I'll be back.