Capping Off An Unused Chimney

If you are only talking a few feet of redundant flue then you ll probably be ok with fully capping after reducing the height with a single vent left in the blocked up fireplace.

Capping off an unused chimney.

How to close an unused chimney. If bits of brick have crumbled inside or if there is significant decay consider calling a. Simply cut a tight fitting plug out of foam insulation and block the hole on the bottom. The bottom is even easier.

Take measurements for the length width and height of the chimney s flues. Then measure across your flues to find the widest point. Capping a chimney off with a slab is well not may favorite at all. Remove the cap on the chimney.

Usually unused chimneys are capped off with a bent sheet metal covering and perhaps a wire strap or weight on the top. Http www fixmyroof co uk videos and guides chimneys chimney capping in this video i show 3 different ways to cap off a disused chimney that does not alter. If you decide to cap your chimney off yourself please make sure you use the correct ladder safety. The rain cannot get in but it is not sealed air tight which does allow any inside moisture to slowly get out.

Extend the tape measure to find the total combined length of all the flues. One old and virtually free method of capping off or sealing a chimney that is generally no longer used is to make a lead cap. Insulating the bottom of the chimney once you ve capped the top of the chimney you will need to insulate the bottom of it. Climb onto your roof to inspect the chimney.

Measure all sides of the. Place the end of your tape measure against the side of the flue which is the clay or metal tube coming out from the top of your chimney. These can simply be made out of a scrap or an offcut of lead beaten into the correct shape and bonded to the top of most chimney pots to effectively seal it and make it waterproof. 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.

You may need to use a screwdriver to loosen screws holding it in place.