About Storm Collar
A storm collar is a simple but very practical device. It sits around the chimney, above the flashing, and prevents water from running down the chimney and seeping inside of the flashing or inside of the vent pipe. eBay sellers offer flashing, storm collars, and all of the tools and equipment you need to install one. Take all safety precautions when working on a roof, including anchoring yourself and your securely, and then remove the chimney cap by unscrewing the cinching screw and lifting it off and the old storm collar by cutting away the old caulking. Slide the new collar over the chimney and locate it at the upper rim of the flashing. Use waterproof caulking and seal around the top edge of the collar. This provides a tight seal that prevents water from seeping underneath. Once it is firmly in position, replace the chimney cap. Make sure that your chimney is in tip-top condition and is safe from water damage by installing a quality, tight-fitting, storm collar.