On 6/21/2011 9:49 PM, Jim Franklin wrote:
> I boxed in some basement windows in a very not-square house, and there are
> some gaps between the boxes and the casing molding that rests on the sheetrock
> walls, some as large as 1/2". The homeowner would prefer the gaps filled in
> and smoothed out rather than me laying a piece of molding over it. Since the
> gaps have no bottom, I thought I'd create a bottom with some minimally
> expanding foam and then fill the remainder with Bondo. I'm sure caulk would
> require many layers to stop shrinking, drywall mud would crack and wood
> filler...no idea but it has never worked well for me in smaller
> applications...
Bondo and the drywall are going to expand and contract differently with
temperature changes, which next to a window will be significant. You
should use gypsum compound, not bondo. Tape over it with fiber glass
tape and mud/sand to blend into the existing wall
Personally, I'd cut back the drywall to the next adjoining stud and re
sheet rock around it. A patch job on a seam is going to look much
better than plastering a large gap and is probably less work and cost.
Peter T.
> I'm open to the more experienced options before I revisit this brain cell
> massacre of my teenage years.
>
> thanks,
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