A synthetic thatch member for use as a roofing material product, along with associated methods for manufacturing and installing the same are provided. The synthetic thatch member comprises: a plurality of frond members defining a first three-dimensional surface of the thatch member and a second three-dimensional surface of the thatch member, the first and second surfaces comprising opposing sides of the plurality of frond members; a fused portion comprising a first portion of each of the plurality of frond members, wherein each of the first portions is connected relative to one another, such that the fused portion defines a substantially impermeable surface; and a serrated portion comprising a second portion of each of the plurality of frond members, each of the second portions being separated relative to one another, such that a plurality of gaps are defined between each of the plurality of frond members.