Originally Posted By: mreichl
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[ Image: http://www.nachi.org/bbsystem/usrimages/more/100_0356_attic_safety_hazard.JPG ]
[ Image: http://www.nachi.org/bbsystem/usrimages/more/100_0356_attic_safety_hazard.JPG ]
Originally Posted By: ekartal
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I’ll say that condensation from vents over the years has caused the chimney to become so damp it has lost it’s ability to support itself.
Erol Kartal
ProInspect
Originally Posted By: mreichl
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Erol,
that’s what I thought too, but did you notice that the vent is centered
on the top? The attic floor did not appear to be altered and the opening
in the floor seems to be the builders intended opening. My first idea was
that they have simply shifted the bottom portion.
Martin
Originally Posted By: psabados
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Hey guys
The design or style is called corbeling. It was purposely constructed that way. Look at the mortar lines, pretty much parallel. Note that the joints appear tight with minimal deterioration. Looks like the exit point is right at the ridgeline and the chimney slightly off center, most likely hidden by a wall near a center hallway
www.rumford.com/code/IRC03.html Check out this website. Some pretty good info
Paul
Originally Posted By: rpalac
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I am not a bricky, mason or chimney expert but i have been involved in building several houses. When a chimney is designed it is offset to produce part of the draft effect. They are not built straight up and down.
The offset is usually down near the fire box and is called a smoke chamber for the draft to start.
Maybe they offset it for other reasons. Floors and roofs don't move ther openings.
Originally Posted By: jpeck
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All the corbeling design specifications I’ve seen keep the wall thickness on the back side while corbeling out the front side, creating an offsetting weight on the back side of the corbeled out bricks.
This corbels sideways, with no offsetting counter weight to hold it straight. Looks like its been that way quite a while, but that does not make it safe. It would not take much to bring that pile of bricks down onto the ceiling joists below, probably breaking through and falling into the room below.
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Jerry Peck
South Florida
Originally Posted By: cbuell
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I have seen dozens of chimneys like this. They are just built that way to avoid making crickets necessary and for “esthetic” reasons (what it looks like from the outside)
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It is easier to change direction than it is to forget where one has been.
Originally Posted By: Bob Badger
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What where you doing in my attic.
I assumed this was done just to make it look nice outside as cbuell mentioned.
Done this way the chimney makes it up through the house without getting in the way of the carrying beams in the first and second floors but it still comes out of the roof nicely centered on the peak.
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Bob (AKA iwire)
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