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.
Capping off a chimney flue.
Capping unused chimneys flue ventilators uk.
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.
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.
Use a ladder that extends at least 3 feet 0 91 m above your roof so you can.
Measure the length and width of the flue on your chimney.
Put on heavy work gloves and use tin snips to cut a piece of sheet metal to the same measurements as the chimney opening.
Apply a bead of butyl rubber caulk around three sides of the chimney at.
The flue ventilator stops rain entry to the chimney but still allows a small amount of air passage for ventilation.
Flue ventilators can be found on our chimney potpage.
Get onto your roof with a ladder.
Find the flue on your chimney which is the clay or metal.