"Inside Out" Wall Question

Started by specialkm on 24 January 2010. 9 replies. In the Library under Walls, floors and ceilings.

Originally posted at johnlsayers.com, topic 13990.

Kind of a general question so not sure if I'll get a response. I'm considering the "inside out" wall designs John has illustrated. My question concerns the construction of the wall layers. Assuming you don't have the physical room to apply the outside layers to the constructed framing and have to build them in a more modular fashion say in 4'x10' panels and set into place on the plate, this would not allow for applying your wallboard layers to overlap the seams. You would basically have a straight through seam on the edge of each panel. My thinking is that even with proper caulking between this seam between stud and wallboard edges, this would present a weakness in design over having overlaped seams. My questions are: 1. How much of a weakness is this? 2. Is there any suggested way to construct this type of design and be able to overlap the outside seams? The only way I can see is to build the complete wall on the deck and lift it into place. Am I wrong in thinking that a 20'x10' wall with at least two layers of 5/8" drywall is going to be extremely heavy to lift into place. Also seems like that last wall will be a bitch to negotiate. Any suggestions or comments? Thanks.
hi, Build the wall as one piece on the ground, Caulk, mud all joints. You need a few burly mates or I hired a chain block to left into place. The corners work ok if you double stud the ends of every 2nd wall(a and c) And as you can see in my thread I also left 120mm over hang of plasterboard. I just covered it in no-more nails(glue) and slid the next wall into place.
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Thanks for the reply's! Looks like I'm gonna need some friends for a good old fashion "Barn Raising". Seems like the longest wall is gonna weigh about 900 pounds in drywall alone. Not sure how much the timber adds, but it's gonna be pretty heavy. Now to see if I can figure out the "Inside Out" ceiling.
for long walls you build them in section sizes you can handle.
John Sayers wrote:
for long walls you build them in section sizes you can handle.
Given say an approximate 10 foot height, what's a reasonable length section in your opinion. Thanks.
I've no idea - I've never done it physically myself but I've observed many make the trip :)
you can also use wall jacks - then thereis no load
John Sayers wrote:
I've no idea - I've never done it physically myself but I've observed many make the trip :)
Hmm...... always the general, but never the soldier, eh :mrgreen: Thanks for all the info on this great site. Rod, just received your book this last week and it's been a great source. Many thanks! All will come in handy as I redo several of the rooms in this existing post facility I took over Jan 1. Two of the existing VO/Overdub rooms should be a lesson to all in building a room with all the wrong design techniques. Gotta fix those up before I tackle turning an existing lounge into a medium size tracking room. At least the main mix room is in pretty good shape.