A.Bryan Readling, PE,
senior engineer at the APA/Engineered Wood
Association, responds: That's probably a bad
idea. Although glue may indeed make a framed and
sheathed wall stronger, the APA provides design
values only for nails, due to the high variability
of field-applied adhesive performance. You'd still
need to follow the same fastening schedules, so the
glue would be redundant.
Also, the load-deformation characteristics of
nails are often much different than they are for
adhesives: The glue connection would have to fail
before the nails ever saw any load. Adhesive
connections tend to fail more dramatically than
nails, which give more warning. Nails are also
superior in cyclic seismic loading, since more
deformation means more energy absorbed through
damping, similar to how shock absorbers work with
the springs on your vehicle.
In addition, plywood and OSB already provide
good resistance to air infiltration when used with
an adequate housewrap, and they won't be improved
much with extra glue.
Finally, note that the APA's Engineered Wood
Construction Guide (Form E30, available free online
at www.apawood.org), states: "To
minimize the potential for panel buckling, gluing
of wall sheathing to framing is not recommended,
except when recommended by the adhesive
manufacturer for wall sheathing that already has
been permanently protected by siding."