What Is a System II Asphalt Roof and When Should Builders Use It?

What Is a System II Asphalt Roof and When Should Builders Use It?

Table of Contents Asphalt roof system II most commonly refers to either Type II oxidized asphalt used in built-up roofing (BUR) systems or a Class 2 impact-resistant shingle. Type II asphalt is a semi-flat, moderately soft grade suitable for low-slope roofs (up to a ¼-in-12-in pitch) and often used in commercial or multifamily applications. Class […]