
The picture is of a ventilated crawlspace in the snow belt of central Ontario—Caledon East. It shows heating ducts, drainpipes, and potable water pipes on the ceiling of a crawlspace. The crawlspace is ventilated to the outside through a pair of opposing foundation grates on either side of the side addition to allow for cross ventilation. The contractor/architect unfortunately delineated…
© 2013 Created by Lawrence Berkeley National Laboratory.