Matt Risinger is remodeling a newer home (less than 10 years old) in Westlake, near Austin, TX and in this video, he'll explains why he's not a fan of traditional fiberglass, batt insulation. One main deterrent is that near-perfect installation of the material is required in order to get close to the R-value of the insulation, especially when trying to fit around wires, vents and odd-shaped spaces that cause voids. What is R-value when it comes to insulation? Insulating material's resistance to conductive heat flow is measured or rated in terms of its thermal resistance, or R-value. The higher the R-value, the greater the insulating effectiveness. The R-value depends on the type of insulation, its thickness, and its density.Risinger also discusses how the vapor barriers should be installed on the outside, not the inside to avoid condensation and mold issues, in hot, humid clients, Avoid fiberglass batt insulation if you can, but if not, then blown in batt insulation and spray form work well.