I design superinsulated houses. After
trying many methods of achieving high
R-value walls, I have settled on a system
that I am comfortable with. The
following represents some details that
I've developed to make it painless to
build with extra-thick walls. First, I'd
like to explain why I build this way.
There are several approaches to
getting an R-30-plus wall. Any
method should be evaluated in terms
of cost, ease of construction, and
effectiveness. In addition, you should
consider how much it differs from
standard building practices. Include in
this whether subs will need to make
extra visits to the site, and whether
the normal sequence of construction
must be altered. Finally, consider
whether the wall system works well
with