Extend the tape measure to find the total combined length of all the flues.
Capping off an unused chimney.
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.
Why should unused chimneys be capped.
Then measure across your flues to find the widest point.
Remove the cap on the chimney.
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.
Take measurements for the length width and height of the chimney s flues.
Simply cut a tight fitting plug out of foam insulation and block the hole on the bottom.
Capping a chimney off with a slab is well not may favorite at all.
If you decide to cap your chimney off yourself please make sure you use the correct ladder safety.
You may need to use a screwdriver to loosen screws holding it in place.
Usually unused chimneys are capped off with a bent sheet metal covering and perhaps a wire strap or weight on the top.
How to close an unused chimney.
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.
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.
If bits of brick have crumbled inside or if there is significant decay consider calling a.
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.
Measure all sides of the.
The rain cannot get in but it is not sealed air tight which does allow any inside moisture to slowly get out.
The bottom is even easier.
Capping a chimney off with a slab.