Once it's straight, nail or screw it along the bottom of the piece of insulation, just above the seam to secure it all in place. This type of insulation should be familiar to most homeowners and comes in rolls of blanket material. Spray Foam Insulation vs SATAC Insulation for pole barns Because fiberglass insulation is a soft batting, fiberglass can sometimes attract nesting bugs, rodents, or. How to insulate a metal building home . A benefit of this insulation is that it will fill the corner of the building better and reduces the potential for leakage. Cold winter temperatures are exaggerated by the metal roof and wall sheeting making it frigid inside. Keeping your steel building properly insulated will also prevent the growth of. This is used to keep the metal building from sweating or potentially dripping condensation that can occur in high temperature swings. Fiberglass insulation is the least expensive and most popular method of insulating metal buildings. Before ...