EPD: Cold-rolled annealed coil clip, 2534 (Rondo)
The clips, joiners and brackets used in these systems are all covered in the clips group. Similarities between products in the first three categories (ceiling systems, wall framing systems, finishing and accessories products) have enabled them to be grouped according to substrate material, gauge and proportion of punch outs. LCA results have been calculated for a representative product within each group (not an average). The products in this EPD are represented by 26 products for Module A1-A3, 3 products for Module C and 7 products for Module D. The representative products used for Module A1-A3 are outlined in Table 1, while those used for Module D are shown in Table 2. The tables show the substrate materials, Base Metal Thickness (BMT) and percentage punch outs (A1-A3 only) represented by the group, with the parameters for the representative products in bold where required, as well as a list of all products included in the group. The specific products covered by this EPD are outlined in Table 3 (ceiling systems), Table 4 (wall framing systems), and Table 5 (finishing and accessories), along with a length to mass conversion factor and the representative product for each LCA module. Rondo’s systems use a variety of clips, although the overall mass of clips is quite small in the scheme of a project. The manufacturing impacts for all clips are represented by a single product, 2534, which is Rondo’s biggest seller. The base material is cold rolled annealed steel that goes through a further hardening process after roll forming. The energy intensive nature of the hardening process makes it a ‘worst case’ example. The clips covered by this EPD are outlined in Table 6, along with a mass per piece conversion factor and the representative product for each LCA module.
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