Hello Friends, Finding conflicting information about what type of base to use for constructing a Flagstone Terrace. Some of what I read says use a Concrete pad, and others say not to use Concrete, but to use a gravel, then sand base.I am a Professional Gardener, live in Maryland, USA where it gets quite coldand we do get much heaving of the ground.Not going to actually construct this project, it is for a Garden Design course from the English Gardening School. I have to detail the process and materials.I wanted to have the proper information for my own personal knowledge.So, which is the correct way??Please give your personal advise anyone.Could Concrete be used with expansion joints??The area of the terrace is 330 sq FT, a "L" shaped design.THANK YOU
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  • Hi Tamara, I would always go for the full mortar bed and a good hardcore base If for no other reason than longevity. This year in the UK we have had very low temperatures for extended periods and the only problems we are seeing is damage to the pointing which is easily rectified, but even that if it has been mixed and applied properly should not fail. I have a natural stone patio at home it has been down 17 years and have not had to do anything with it from the day it was completed even with the extreme temperatures.
  • Thank you Karl and Trevor, I appreciate your help.
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