Question on chimney repairs. I've lived in this house for 4 years now, and every year I notice more pieces of brick falling off my chimney. I've plugged some of the holes up with mortar, but every year there is more damage. The chimney was built in 1975 and I think it is concrete block with a brick fascia? If I go the tuck pointing route I'd be doing it every year. What about some kind of cement covering right over the bricks? Thanks.