pipe insulation

Hello all and thanks in advance for your help here. My condensate pipe has a 5/8 (I think) plastic/ PVC pipe that discharges the water outside. unfortunately, a small section of this flexible little pipe is completely exposed outside my house. that section (few inches) freezes almost every day...

Dear experienced Craftsmen: I have a question about plumbing pipe insulation and code. I am a refrigeration contractor, so in my world, everything is closed cell insulation. However, I observe that plumbers still (primarily) use open cell pipe insulation. Recently, I sold my house, and I had...