Abstract: A system for mounting a flexible sheeting material to a substrate is comprised of a number of frame sections including an elongate support member secured to the substrate and an elongate connector member secured to an end portion of the flexible sheeting material, with the support member and the connector member including interlocking anchor elements capable of forming a releasable interconnection therebetweeen. The support member and the connector member each include a tool engaging portion defining oppositely facing bearing surfaces. A tool is provided which includes a first engaging surface positioned in abutment against one of the bearing surfaces, and a second engaging surface positioned in abutment against the opposite bearing surface. Displacement of the engaging surfaces along the bearing surfaces tensions the flexible sheeting material to a taut state, with the interlocking anchor ribs forming a releasable interconnection to maintain the flexible sheeting material in the taut state.