Heat Loss from Air Is No Big Deal, Right?

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No — it's a huge deal, especially if your ceiling is peppered with recessed can lights

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[](http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/heat-loss-air-no-big-deal-right)

No, it's a huge deal. The photo (right) is of air streaming through recessed lights in a cathedral ceiling.

I often and exhaustively speak about air sealing as if it were a universal good. And it is, right up there with brown ale and Avengers movies. My audit customers often look confused when I address their insulation questions by bringing up air barriers and air leakage. I mean, "Why are you talking about air leaks when I asked about the insulation?"

URL: http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/heat-loss-air-no-big-deal-right