Wednesday, January 17, 2007

Attic Open Questions

I was up in the attic recently (I say that a lot these days) and noticed something weird:




attic ice
Originally uploaded by Jake Bridge.


See those white dots on the ceiling? That's ice. Every nail hole and knot hole has a frosty bit of ice on it, but only on one side of the house, the side without the chimney. Where's this water coming from? Is the whole roof, on one side, leaking a little bit? Is this just ambient moisture in the air freezing around the very cold (it's 12 degrees out) nails on the north side of the house?


That's today's new attic mystery. Here's an oldie but a goodie:


shady vent + ice
Originally uploaded by Jake Bridge.


You can see some ice in this one too, but notice that pvc pipe. That vents two p-traps (such an unfortunate name) from the upstairs bathroom. The pipe to the left goes to the toilet and the pipe straight down vents the shower drain. The pipe ought to continue straight up through the roof and vent sewer gases out of the house, but instead it vents straight into the attic.

The internet tells me that:

Make sure the vent doesn't terminate in the attic. Trapped sewer gases can be dangerous, stink and cause serious structural problems.




That's easy to believe, 'cause this guy looks deadly serious.

1 comment:

  1. I'm willing to bet that the frosty buts of ice forming on the nails are from ambient moisture in the attic freezing onto the cold nail.

    And where could that moisture be coming from? I'd wager that the PVC pipe that vents into the attic is contributing most of the moisture.

    I just hope that's not stinky ice forming on those nails.

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