How best to block up a chimney hole when taken fire place out
I have just removed all the fireplaces from a 2 up 2 down victorian house. I want to seal the holes with blocks and cement. However what about damp.Surely rain water will still come down the chimney and rest in the bottom of the fireplaces therefore creating damp behind the newly sealed holes. Is this a problem and if so how do I resolve it
Take off the portion of the chimney that projects above the roofing. Cover with the same type of roofing after you have secured the support for the roofing. This will also eliminate the possibility of leaks between the chimney and the roofing.
If the chimney comes through the house and out the roof. I agree with concretemasonry. This would be the best way and later if you wanted to reuse the fireplaces you could rebuild the chimney with any brick you want since you will only see what is above the roof.