Trim on stryrofoam concrete forms
Looking for some ideas as to good methods to install trim on walls that are made with the stryrofoam "Logix" or other brand concrete form blocks. There are plastic ties in the blocks that allow for drywall to be screwed directly to them, but depending on the height of the trim and the location of seams in the blocks, there may not be plastic ties so screws may not work.
I once trimmed out a basement (that didn't have crown mould) and was able to get in there before the sheetrocker. I ripped some waferboard and screwed it to the wall at a height a little shorter than where the top of my baseboard would end up. The sheetrock then sat on top of the waferboard ledger, and I had something 'solid' to nail baseboard to.
So now that I'm considering trimming out a house that already has the sheetrock run floor to ceiling, and they also want crown mould, I'm looking for some suggestions.