The composite material includes an open grid consisting of two or more sets of twisted pair . Each twisted pair set has a plurality of openings between the adjacent twisted pairs . These sets are oriented with respect to each other , each substance . The laminated film is chosen , the open grid . Chosen material is a film containing a first and a second major surface having a first and second non- asphalt resin component material is at least about 50% of the main surface and the asphalt component of up to about 50% of such tack coat . ;
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