Capping Off A Chimney Flue

You should cap any unused chimneys with a flue ventilator.

Capping off a chimney flue.

Apply a bead of butyl rubber caulk around three sides of the chimney at. Put on heavy work gloves and use tin snips to cut a piece of sheet metal to the same measurements as the chimney opening. Insulating the bottom of the chimney once you ve capped the top of the chimney you will need to insulate the bottom of it. Unused chimneys not only waste a lot of heat they also pose a potential damp problem as well as being a cause of smoking fireplaces and stoves.

Use a ladder that extends at least 3 feet 0 91 m above your roof so you can. The flue ventilator stops rain entry to the chimney but still allows a small amount of air passage for ventilation. Get onto your roof with a ladder. Buy a cap that has the same length.

Find the flue on your chimney which is the clay or metal. Chimney cowls for capping chimney cowls are normally used to adequately ventilate chimney flues connected with an appliance like gas fires open flame gas fires wood burners coal fires etc. Flue ventilators can be found on our chimney potpage. Capping the flue is one of the best ways to close up the top of the chimney as it will still allow air to get in and out preventing condensation from building up.