On Sun, 31 Jul 2005 11:30:08 -0700, "Warren"
wrote:

Don Phillipson wrote:
What do people normally do when the roots of a tree lift the concrete ?

They usually remove the tree, as recommended to this householder.


Or remove the concrete.
AMEN!

Studies (municipal) of sidewalk lifting have demonstrated that just as
many problems exist without trees being present as with. If the
concrete is installed correctly, there will be no tree-root problems.
If there are problems, removing the tree will not make them disappear
magically. Remove the slab and, if necessary, replace it using a
contractor who understands concepts such as reinforcement and soil
movement (and be aware that if the new slab installation cuts major
roots within a few feet of the trunk the tree will likely become
unstable). Better yet, replace it with a raised deck or other
non-invasive (to the roots) solution.

k