Most codes require
crawlspace ventilation
to reduce moisture-
related decay.
And all require that
roofs be ventilated to
prevent moisture
from accumulating in
the insulation and to
ward off ice dams.
In some situations,
however, such as on
a steep roof or a low
foundation wall, providing
adequate ventilation
is difficult.
Here are two innovative
approaches to
ventilating these
problem areas.
Do you have a building
detail—rough or finish, interior
or exterior—that works
well for you and might be a
help to others? If so, please
send us a readable drawing
along with a brief written
description of the technique.
Send your ideas, along with
name, address, and phone
number, to JLC Details,
RR#2 Box 146, Richmond,
VT 05477.
Building Details Wanted
Steep roof ventilation. A standard
rule of thumb for roof ventilation
calls for one