In the previous issue, we discussed material selection and quality control measures to improve the quality of soldered architectural sheet metal joints and minimize vulnerability to failure due to thermal movement and water infiltration. In this issue, we will discuss the procedure and quality control measures for joint preparation and soldering techniques that must be implemented to avoid soldered architectural sheet metal joints that are vulnerable to failure. Photo numbering follows from our previous article, and begins with Photo 3 in this article.
Construction of durable and watertight soldered sheet metal joints is difficult to achieve in a field environment where dust, dirt, debris and other contaminants can limit the effectiveness and quality of the soldered joint. Although proper material and equipment selection is crucial in preparation for soldering architectural sheet metal, detailed forming, cleaning, and soldering techniques are also necessary to ensure durable and watertight soldered joints.