"CL (dnoyeB) Gilbert" wrote in message
shouldnt all homes have ground area the slopes away from the foundation
and thus not be on grade?

Just wondering as _all_ homes I ever saw in detroit did not have any
slope, but I keep reading that I am supposed to have a slope!?

Most with concrete have a slight pitch away from the house. You need only a
very small amount for the water to run. Ground is not a smooth an dirt also
will absorb water so you'd want a bit more.