Jacking Up A Porch Roof To Remove Old Columns

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Jacking up a porch roof to remove old columns.

Position the post and use the jack to raise the porch. Attach a short 2 x 6 board to the end of a 4 x 4 post. This is usually done by jacking up temporary post material to take the weight of the roof so that the rotting post or column can be removed. The jack can be adjusted up or down until the roof is level.

How i replace rotting supports beam and posts under deck. To safely remove the old posts before installing the new ones the porch roof needs to be securely supported. In order to do this we removed the flooring up to the column and then placed a 20 ton hydraulic bottle jack on top of the brick foundation under the porch. This jack has a maximum extension around 8 inches and it is about 20.

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The column is supporting the roof therefore the load has to be supported to remove the column. Position a jack directly under the porch beam next to the column. Get to the jacking of the porch roof already jack. Bottle jacks are available in a variety of shapes and sizes.

Measure from the porch beam to the jack and cut the 4 4 to just under this length. Slide the column out from underneath the roof. You may hear a little cracking sound which is normal. Do not raise the roof any further than necessary to remove the porch column.