Although galvanized metal roofing has a life expectancy of 50 years, time and objects can cause the metal roof to leak. The damage caused by a water leak can be considerable and the problem must be addressed quickly. When it comes to repairing a metal roof. There are different methods to seal a water leak, but most of these methods are not permanent and they may need to fix the repair at intervals. One type of repair remains strong for the life of your galvanized metal roof. Measure the length and width of the hole in the galvanized metal roof with the tape measure. Add at least two inches for both dimensions that you measured. Mark both dimensions are calculated on the piece of galvanized metal with the permanent marker.
Cut the piece of old galvanized metal roofing with the aviation scissors and set the scribe up to 1/2 inch. Run the scribe along the four edges of the galvanized cutting patch. And cut each corner of the patch at a 45 degree angle with the aviation scissors. Make sure that the 45 degree cut crosses the intersection of the 1/2 inch marking lines. Fold over each side of the galvanized metal patch with the metal sheet closing hand. Using the marking lines as reference marks for the curves. Each fold has to bend over the surface of the metal patch. Clean each fold of the metal patch with the 120 grit sandpaper until the metal glows. Clean the area around the hole in the galvanized metal roof with 120 grit sandpaper.
Apply flow to the clean surface of the cover and the bent edges cleaned from the galvanized metal roofing patch with the acid brush. Adjust the metal patch over the hole. And place the two pound weight on top of the patch to hold it in place. Rest the hot soldering iron against one of the edges of the metal patch. Rub the lead-free solder on the tip of the soldering iron and allow the molten solder to flow under the metal plate. Pull the long soldering iron from each edge of the metal patch, while applying solder to the tip of the soldering iron. Allow the weld to cool before removing the two-pound weight from the metal patch to finish repairing the galvanized metal roof. Never work on a galvanized metal roof when the roof is wet or in windy weather.