by William A. Lotz, P.E.
The architect required foil-backed
gypsum wallboard as the combined
vapor barrier and interior finish. The
specifications read "Provide aluminum-
foil-backed tape behind all joints
to maintain vapor barrier."
I have no idea how the contractor
could possibly have done what the
architect's specifications required.
However, the contractor had a legal
obligation to either follow the drawings
or point out in writing that the
detail was impossible and ask for a
change. The contractor, in this case,
chose not to make an issue of the
but learning from others' problems is
much less expensive and traumatic.
Learning the Easier Way
There are many inexpensive ways
to learn. Attend at least one builders'
conference or workshop