my roof leaks around the chimney flashing and through the roofing felt near the stack,the chimney is no longer in use,i`ve asked a builder to remove the stack and make good the roof above it,the chimney is open at the bottom and vented half way up,the builder suggested leaving the chimney open in the loft below the new bit of roof,is this o.k ?
(the chimney was used for a old oil fired boiler with a flue fitted in the stack)
(the chimney was used for a old oil fired boiler with a flue fitted in the stack)