2.5 insulation is the most common used product for the typical Post Framed building. Laid with a white reinforced vinyl backing, the insulation blanket is attractive and economical. Rated at an R-7 it helps reduce heat transfer and condensation. All of our buildings come standard with the 2.5 insulation in the roof and can be added to the side wall as an additional. A 6 insulation blanket can be used in the walls when commercial girts or a stud wall is used. See "Framing" options. The R-19 rating will greatly reduce heat transfer and will promote energy efficiency.