I CAN'T TELL YOU how many times someone has asked me, and just about any wholesale supplier worth his salt, "What is the best insulation for below-slab application in snow-melt systems?" And the only ...

I SET UP MY own unscientific research to compare different insulation products used in snow-melt systems, as you'll recall from last month's column ("Answers to questions on snow-melt insulation," pg.