Thermal conductivity measurement of a new energy saving wall assembly

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Conventional light gauge steel framing has solid steel webs, which result in significant thermal bridging energylosses, or gains, in building walls. Structawire Corp (SWC) has devised a new steel framing stud where thesolid web is replaced with a double wire truss that is resistance welded to two flanges. Heat transmissionthrough this innovative stud is reduced by 80 to 85%. However, in preliminary testing, it has been discoveredthat the actual heat flows are lower than predicted by modeling and calculations. The hypothesis for thisdifference is that resistance to heat flow through the weld points is greater than expected. The UBC teamworked with SWC and successfully constructed a thermal conductivity apparatus and this Engage plus grantwill aim to further test samples from SWC. Through understanding the thermal properties of the weld points,optimized steel framing stud can be built.