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Venting a chimney stack at roof level

Discussion in 'Roofing and Guttering' started by top banana, 26 Jan 2020.

  1. top banana

    top banana

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    hi guys, has anyone had a previously capped chimney stack which required venting?
    I don’t want to remove bricks as they don’t line up with the flues.
    I was thinking of either using a core bit to install round vents to each individual flue, or drill out perps install a weep vent.
    I know the weep vent won’t have a great effect so I’m leaning towards the round vent. Just wondering what size I’d need as I don’t particularly want 4 no. 100mm vents on the side of the chimney.
    Any ideas please.?
     
    Last edited: 26 Jan 2020
  2. catlad

    catlad

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    Whats wrong with a standard clay air vent?
    I don't know what you mean by flies
     
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  4. top banana

    top banana

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    Thanks for your reply catlad.
    I’ve edited post, flies was flues!
    A standard clay air vent would mean removing bricks. And the bricks don’t line up with the chambers.
     
  5. bobasd

    bobasd

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    why not post pics of the flaunching and the stack?
    also, why not read up on here about whats needed for redundant flues and stacks?
     
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