finds utility particularly when the invention 40 a is to be placed onto a surface that is to be sealed against water infusion e g outside basement walls the amount of actual overlap o l depends on a particular usage manufacturers preferences and the membrane bonding techniques to be used fig1 shows an end elevation of the invention featuring yet another optional arrangement of standoff support members 10 and 10 d the inventor 39 s specifications call for a parallel arrangement of quasi tubular supports in near or close proximity that is eschewing any filler medium between adjacent supports and yet fully contemplating a physical communication between these members ibid fig7 in fig1 the referenced optional arrangement is termed a parallel interleaved i l disposition the arrangement is simply an alternating forward back u201c staggered u201d placement of the supports of either type two doublets shown throughout the array in pre selected periodicity this option facilitates an easier folding or bending of the invention around a corner thus allowing sharper turns in its placement of course adjustments in either adhesive application fixture or membrane looseness may be necessary for such a feature but they are well within the competence of modern manufacturers it should be recognized that the fundamental aspects of this invention can be realized with for example quasi tubular stand offs of different nomenclature such as rigid perforated pipes tubules rods u2014 but flexibility may be lost to some degree a trade off for the ability to sustain heavier overburdens see e g fig2 and description the clear advantage of using the standoff elemental structures of the invention is seen in the fact that the gap between adjacent hoop planes fig2 23 of either embodiment can exceed the.