The flue ventilator stops rain entry to the chimney but still allows a small amount of air passage for ventilation.
Capping off a chimney flue.
Flue ventilators can be found on our chimney potpage.
Put on heavy work gloves and use tin snips to cut a piece of sheet metal to the same measurements as the chimney opening.
Find the flue on your chimney which is the clay or metal.
Buy a cap that has the same length.
Get onto your roof with a ladder.
Apply a bead of butyl rubber caulk around three sides of the chimney at.
Insulating the bottom of the chimney once you ve capped the top of the chimney you will need to insulate the bottom of it.
You should cap any unused chimneys with a flue ventilator.
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.
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.
Capping unused chimneys flue ventilators uk.
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.