https://www.repairmywindowsanddoors.co.uk/whitstable-guttering-and-downpipes-near-me/ Repairing Leaks From Cast Iron Downpipe Joints Leaks at the cast-iron joints of downpipes can be an issue. They can cause water damage and promote mold and mildew growth. Fortunately they can be repaired. First, you'll need to clean the pipes of any rust or paint using wire brushes. Once the pipes are clean then you'll need to evaluate the extent of the damage. Caulking Caulking isn't permanent however it can be used to stop further damage and keep rainwater flowing. Most hardware and home improvement stores offer mortar caulking. It is used to seal gas in bricks and stones as well as metals to repair foundations and fissures and prevent leaks around doors and windows. When use caulking, ensure that you get rid of any paint or rust from the area prior applying the new sealant. You can employ scrapers or wire brushes to do this if necessary but be careful not to cut or scratch the pipe. It is also recommended to wear gloves while working with caulking because the chemical compound may irritate your skin. To prepare the area to be cleaned, employ a wire scraper or wire brush to get rid of any rust or debris from the pipe joint. Masking tape is placed on either side of the area to ensure clean lines when you apply the caulk. Additionally, the edge of the caulk tube needs to be cut at 45 degrees. Then, load the caulk gun with a bead of the compound and apply it to the joints or gaps you'd like to repair. You should employ a caulking tool that has a consistent speed and pressure to apply a uniform, smooth bead. Once you've applied the caulking ensure that you wait at least six hours before using the downpipe once more. This allows the compound to completely dry and provide a the strongest, longest-lasting seal. Although most people can do some work themselves to maintain their gutters and downpipes, it is best to leave more extensive repairs to professionals who can deliver the most eff