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 the thermal boundary at the main-floor floor cavity, orphaning water pipes and heating/cooling ducts. In fact, the furnace was in that unconditioned crawlspace, which is effectively outside!

 

Adding insult to injury …

 

See "What Were They Thinking?" by Greg Labbé


Home Energy, May/June, 2010



 

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