Roofing
Weather-resistant materials such as zinc, stainless steel, aluminum, lead, and copper are used in roofing and joined using soft solder to ensure a material-to-material bond. When selecting a flux, care must be taken to ensure its chemical composition (activation) is compatible with the material. For galvanized gutters, unlike pure copper elements, a stronger flux is required to ensure proper wetting. In particular, for roofing systems using decorative zinc sheets with an artificial patina or color coatings, special fluxes with an appropriate etching function are required to ensure an optimal soldering process.
Discover ProductsSelect a soldering method for roofing applications
Certified Environmental Management System in accordance with DIN ISO 14001
FELDER GMBH places great importance on the responsible use of natural resources. Through our ISO 14001 certification, we commit to regularly demonstrating our active commitment to the environment and nature in an official and transparent manner.
Custom Inquiries
Our experienced team is here to provide you with expert advice on your specific inquiries. We understand your individual needs and work closely with you to develop customized solutions that meet your requirements.
FELDER Recycling
When it comes to the metal “tin,” FELDER GMBH ranks among the top three companies in Germany in terms of the use of recycled raw materials. FELDER Recycling focuses exclusively on recycling tin-based solder waste and has been licensed as a certified waste management company since June 2000.
Product Highlights in the Roofing Sector
Soft solder bar Pb60Sn40Sb
for soldering with torch and soldering iron in roofing and metalwork
Soft solder bar SnZn-801 (Sn91Zn9) – extruded
lead free roofer solder for the zinc roofing
5product variants Soldering liquid “ZD”-pro
for soft soldering coated zinc sheets
Tinning stone
Ammonia-free soldering tip tinner for copper pieces (roofer's soldering iron)
Soldering Methods in Roofing
Soft soldering is a common method for joining metals in roofing.
Learn more about soft soldering and its applications in roofing!
Soft Soldering
Soft soldering in roofing and facade applications is a technique that has proven itself throughout Europe, particularly for flashing and drainage systems. Soft soldering combines precision with experience and requires an understanding of materials and the process. With the right technique and the ZD brazing flux, titanium-zinc, for example, can be wetted effectively. Heavily oxidized zinc sheet, on the other hand, is better soldered using ZD-Special soldering fluid. For special finishes such as “slate gray,” “blue-gray,” or “NedZink,” ZD-pro soldering fluid achieves the best results. ZD-Quartz soldering solution can also be used to solder VM-ZINC, QUARTZ-ZINC, and ANTHRA-ZINC. Other roofing and facade elements, such as copper and stainless steel, can be reliably joined using KD soldering flux and VA-NOX soldering flux. Typically, lead-containing (Pb60Sn40, Pb50Sn50, Sn60Pb40) and lead-free (Sn97Cu3 & Sn91Zn9) rod material is used for these applications.
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