Should you insulate hot water pipe (copper) located in an attic?
I live in Louisiana, where it rarely gets cold. The plumbers insulated the hot water pipe from the tankless water heater. Now condensation is building up between the pipe and insulation so bad, it leaked onto the Sheetrock over the laundry room causing damage. The plumbers tried to blame it on the rain, but the roofer said the roof is fine. Since I took off the insulation, the condensation is gone (and it has rained everyday). The Plumbers said rain made the insulation around the pipe wet, but the condensation is ony inside the insulation around the pipe. There is no water damage anywhere else.