Were the top, side, of the parking lot not sealed, water would penetrate and saturate the soil, beneath the lot and behind the wall. This build-up of water behind the wall creates, overwhelming, Hydraulic Pressures beyond the limits of what the aging wall could contain. It’s not rocket science.
Were the top, side, of the parking lot not sealed, water would penetrate and saturate the soil, beneath the lot and behind the wall. This build-up of water behind the wall creates, overwhelming, Hydraulic Pressures beyond the limits of what the aging wall could contain. It’s not rocket science.