Hello All,
I just found this forum and I see some good answers to good questions. I am hoping someone can help me with my problem. I am looking to build a concrete patio and walkways. I have built my house using slab on grade with radiant heat. We compacted gravel, used vapor barrier, insulation, wire mesh, rebar... the whole deal. For my patio I plan to compact a gravel base of approximately 12".
My forms are 4" thick and rebar at 24"centers in both directions. I also plan to use fiber mesh in the concrete. All of that said, my buddy just finished his patio and he put a 4' frost wall around the perimeter and placed insulation and vapor barrier under his patio. His patio is unheated. Mine won't be heated either. What I would like to know is if this extra work and expense he went through is worth it or not? Sorry the question is so long but I figured you would want some details. Any info would be appreciated. Thanks.
I forgot to mention that we live in a northern climate.