Sunday, March 21, 2010

structural corrections


temporary posts in the area where rot was found
you can see the two new columns inside the windows directly above the concrete columns
and the busted up sill

The sill of the front window was broken and sagging inward when we bought the house, which was attributed possibly to freeze and thaw cycles over time or poor load distribution around the window. When the carpenters got into the wall around the window, there were some odd choices made about how to carry the loads downward, but the real problem were some rotted members below the window on the underside of the second floor. The window had very little holding it up and a lot pressing down on it. The carpenters are now shoring things up inside. The steel header over the window is now being supported by (among other things) two temporary steel posts that run down to the concrete columns on the first floor. The original solution was aluminum columns under the steel header that ran down to wood, which then rotted out.


original aluminum column on right going down to wood
new temp steel going down to concrete column on left.

The architects asked the carpenters to try to use the temporary columns to lift the weight off the window and sure enough, they got an inch of vertical space back for the facade. They said that the first 3/4 inch was actually pretty easy, and you could hear the house sighing with relief when the weight was lifted off the window and the wall.

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