R13 24" KRAFT 176SF The building professionals’ choice: batt insulation for single-family houses, multi-family structures and light commercial projects. As a professional installer or remodeler, your goal is always to get the job done right—on time, on budget and in the best interest of your customer–while growing your business. That’s why pros choose fiberglass batt insulation. It installs quickly and easily, provides a snug fit, and delivers excellent thermal and sound control.