I have been told by various roofers, and a respected member of this assoc. that lime should not form part of the mix for chimney work. In his book, Michael Walmsley (and others) advocate lime in the mix! Once again, there seems to be a lack of parity. I for one, trust what I have been told and will not be adding any lime into my flaunching mix. I have yet to see a chimney pot set to the depth of a course of bricks, or with the clay liner extending either into the pot or used as a terminal Chimney pot sat on the bricks or set into a cope stone with flaunching up to a couple of inches is par for the course.
Anyone agree, feel differently?