parallel or proximate a residential backyard patio built on a compacted earth sub base a 4 inch base of sand compacted upon the sub base a setting bed laid on the base with exposed aggregate decorative pavers 5 8 inch thick bonded to the bed in this instance the total depth c of paver bond and bed is about 2 inches and the depth a of the cut between pavers measured from the top surface of the pavers is about 1 to 1 1 4 inches a paving system over an existing asphalt street as one finds in downtown metropolitan areas being converted to malls for pedestrian and limited vehicular use here the sub base may be original concrete or brick pavement the base a superposed asphalt pavement which carried my 1 2 inch thick granite paver bonded onto the top of a setting bed with a depth c of 2 1 2 to 3 inches and the depth a from the top of the paver to the bottom of the cut not less than about 1 1 4 inches a decorative paving improvement for a worn and or seedy looking concrete or similar sidewalk essentially for pedestrian traffic here a 4 mill polyethylene slip sheet or a single layer tar paper sheet is placed over the sidewalk my setting.