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Roofing
Do i need to cap the flue if boarding up a fireplace?
We are about to board up a fireplace (where there was a small gas fire) and have the room skimmed on the ground floor. The whole house has a suspended wooden floor and air ventilation bricks in all external walls. Do we need to have the flue capped off or, if not, a small vent put in the wall to avoid condensation/damp. Or will the sub-floor ventilation be sufficient to prevent damp if the flue is not capped?
1 Answer from a MyBuilder Roofer
Best Answer
all unused fires should be capped at roof level and vented at room level to prevent water ingress from the chimney stack & a build up of condensation in the flue.
good luck alex
Answered 5th Jan 2019
