https://www.repairmywindowsanddoors.co.uk/sheffield-guttering-and-downpipes-near-me/ Repairing Leaks From Cast Iron Downpipe Joints Leaks in the cast iron joints of downpipes can be a source of concern. They can cause water damage and promote mold and mildew growth. Fortunately they can be repaired. First, you'll need a wirebrush to remove any rust or paint from the pipes. After the pipes have been cleaned, you'll need to determine the extent and nature of damage. Caulking Caulking isn't permanent It can, however, be used to stop further damage and to keep rainwater flowing. It is available at a variety of hardware and home improvement stores. It is used to seal gas pockets in bricks and stones as well as metals as well as repair foundations and fissures and stop leaks around windows and doors. Before applying caulk, clean out any paint or rust that has escaped. You can make use of a scraper or wire brush to do this if necessary however, be careful not to cut or scratch the pipe itself. Wear gloves when working with caulking because the chemical compound can cause irritation to the skin. To prepare the area to be cleaned, use a wire scraper or wire brush to remove any rust and debris from the pipe joint. Masking tape should be placed either side of the space to allow clear lines to be used when caulking. The end of the caulk tube should be cut at 45-degree angles. Then fill the caulk gun up with a small amount of the compound. Apply it to the gaps and joints you'd like to repair. When using a caulking tool, you must maintain your speed and pressure to apply an even, smooth bead of the material to the gaps or joints. Once you've applied the caulking wait at minimum six hours before you use the downpipe once more. This allows the compound to completely dry and provide a the strongest, longest-lasting seal. While many people can do some work on their own to maintain their gutters and downpipes, it's recommended to leave any extensive repairs to experts who can deliver