Home DIY

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Spxtz
Drafty chimney woes continued: I've managed to reduce the drafts getting from the boarded up chimney behind the stud wall, so now the draft is only coming out of the fireplace hit and miss vent, and strongly. I've realised there's no cowl on the top of the chimney stack but we can't get there without scaffolding so it's likely to only happen next year when we get the roof renovated. In the meantime, which is the least worst option in terms of causing damp?
1. Install a chimney sheep or chimney balloon and leave the hit and miss vent at the fireplace open
2. Don't install a chimney sheep but close the hit and miss vent when it's particularly cold (which is likely to be quite a lot of the winter)
3. A.N.Other (maybe install a chimney sheep but trap a bit of tube/conduit down the side of it to allow a little bit of airflow?

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Howard in reply to @Spxtz

A roofer can probably fit a cowl or cap without a scaffold tbh - is there something special about your gaff that precludes a set of ladders?

We’ve had our non used pots cowled and will fit a sheep or similar over winter. Should be enough ventilation for the minimal amount of moisture that can get in.

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Spxtz in reply to @Howard

It's a Glasgow tenement and the chimneys are very tall, the roofers we've had out are not keen to get up the chimney stack though they'll happily walk all over the mossy, wet roof in trainers which seems mad to me.

Cheers @aggi, I hadn't realised that that was a difference between the balloon and the sheep.

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