Archive for January 24th, 2016

Roof Nail Frost

A cold snap in early January caught plenty of humidity inside the house and, in fact, the attic temperature dropped so abruptly that the nails protruding through the roof iced over:

Roof Nail Frost - overview

Roof Nail Frost – overview

You’d think they were coated with plastic:

Roof Nail Frost - detail flash

Roof Nail Frost – detail flash

The incandescent bulb lighting the attic highlights the crystal planes:

Roof Nail Frost - detail ambient

Roof Nail Frost – detail ambient

As nearly as I can tell, the ice sublimes or melts-and-evaporates, because the plywood floor under the nails doesn’t have the drip marks you’d expect.

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