Duct Performance

Part of the problem with ducts is related to language. In English, the word ‘always’ and the word ‘never’ sound very similar. Pictured here is the attic duct system on a very inefficient and uncomfortable house. How often should you tap multiple supply ducts into the very end of a supply trunk? Probably nalways.

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What have you been up to?

Fixing water in buildings doesn’t make for very pretty pictures. Here are some progress shots from a recent job. Photo above shows a fairly recent repair to the chimney. Key to fixing water problems is ensuring that there’s no opportunity for water to pool against the building, for instance, at chimneys. New flashing is kerfed into the chimney and caulked. […]

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People who don’t pay your utility bills, #1

The US census bureau puts the world population at just shy of 7 billion people. Of these 7 billion, the number who will pay your utility bills is probably even smaller than the number who have been in your kitchen. Today we’re going to kick off the first in a series looking at people who don’t pay your utility bills, […]

Category Construction, News
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Put that in your energy modeling software and smoke it!

Here’s a photo I took a few months ago during an energy retrofit. Yup, that’s 110F supply air from the furnace being dumped into the unconditioned attic (for thermal purposes what we call “outdoors”). The most plausible explanation is that this was an attempt to fix a cold master bedroom a few feet away. To make matters worse, the duct […]