||07-26-2013 11:24 PM
You face nail the bottom plate or top plate into the joists for both the ceiling and floor, as long as they are where those plates go.
If your home is built like mine, it would look like a grid, if you were to remove the roof, ceiling gypsum, flooring and subfloor. If yours is built, with trusses that they go the same direction as your joists, but your wall you are building, is going to run along side those framing members, you then have to run sleepers between the engineered trusses or joists, to allow you to nail the top plate to. Otherwise, it is just going to have nothing to attach.
There are a lot of resources out there for framing, that you can look at, but personally I like the one my father gave me, that my mom's father gave him. It is when they actually showed how to do this stuff, and you have to go to a library to find anything close to it, to tell you what I am doing, or have something visually.
Like the thread on the Venting issue, post same drawing of the floor plans, but for this thread, draw in where the joists are, and how the wall is going to lay in the floor plan. Google Sketch up is really good for this, Gimp or Paint, since you can use different colors for a particular item.
BTW, how old is this place? There may be blueprints still on file at your city hall, either physical or on microfilm/microfiche if they were one to collect these items.
When I went up to pull electric for my Kitchen, and an antenna line, when they framed the non-load bearing walls, that run alongside the ceiling joists, they used 1/2"-5/8" Plywood on top of the Top plate, that they used as not only a way to secure the Gyprock (Drywall with holes in it, that they applied plaster to. Boards were 2'x18"), then used that to allow them to have something to secure to the joists a cross member laying flat, at from what I can figure on my place, in three places on each wall, due to the longest any one of them is, is 16 feet.
This is about all I can give you. Best is get the floor plans drawn up with where that wall will be, with the ceiling and floor joists in the drawings, so all of us can get a better idea of what you are dealing with.