Capping Off A Chimney Flue

You should cap any unused chimneys with a flue ventilator.

Capping off a chimney flue.

Find the flue on your chimney which is the clay or metal. Get onto your roof with a ladder. 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. Use a ladder that extends at least 3 feet 0 91 m above your roof so you can.

Insulating the bottom of the chimney once you ve capped the top of the chimney you will need to insulate the bottom of it. Flue ventilators can be found on our chimney potpage. Measure the length and width of the flue on your chimney. Apply a bead of butyl rubber caulk around three sides of the chimney at.

Capping unused chimneys flue ventilators uk. However a standard chimney cowl can provide a good alternative to capping a chimney or if you think you may use the flue later to connect an appliance. 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. Buy a cap that has the same length.