As a preventive measure, we wish to replumb our copper piping, slab foundation, one-story home in central FL. This house is 14 years old. We have not had any problems except for flooding from faulty hot water heaters. This house is intended to be passed to a 3rd generation (presently occupied by 1st generation), so we are looking for the best, longterm solution. We have been given conflicting, diverse opinions from the local plumbers. We cannot ascertain which might be the better option, aquapex or cpvc? The majority of the new plumbing will be in the attic which can easily reach 150+ degrees for 6 months a year. Some of the new plumbing might have to be on the outside of the house, however, we will frame and stucco over those areas for concealment for protection and aesthetics. We will not be doing any of this work ourselves, only professionals will be hired.