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Posted by marson on October 3, 2006, 9:06 pm
i nail and glue my subfloors. have had only one squeaky floor, and
that was because the owner/general contractor covered it with a half
assed sheet of poly during a very wet spell during construction and it
got VERY wet (plastic trapped more moisture than it repelled). i just
started using the new foam subfloor adhesive applied with a
"professional" foam gun. really like how fast and easy it is.
Bob Morrison wrote:
> In a previous post Sasquatch wrote...
> > So I'm getting the impression that screws+glue is *DEFINITELY* better
> > than nails alone. But it sounds like screws by themselves, even
> > without glue, is a pretty decent technique, too. Would you say that
> > screws alone is just about as good as nails+glue?
> >
>
> And this is the response I gave in alt.architecture:
>
> I've recently seen a new floor installation method that uses a strip of
> closed cell foam tape on top of the joists instead of glue. The sheathing
> is then put down using #8 screws on the same pattern as one would use 10d
> nails. The foam has adhesive on one side and a slick surface on the other
> to make sliding the sheathing into place easier. I'm told that the
> adhesive on the foam works better on wet surfaces than the normal
> construction adhesive and unlike glue won't spread to surfaces where you
> don't want it. This floor is good and solid and does not squeak.
>
> --
> Bob Morrison, PE, SE
> R L Morrison Engineering Co
> Structural & Civil Engineering
> Poulsbo WA
> bob at rlmorrisonengr dot com
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