Ice and Water Shield: What Pennsylvania Roofs Need at the Eaves
QUICK ANSWER Pennsylvania requires an ice barrier on new roofs. Under IRC Section R905.1.2, adopted through the state’s Uniform Construction Code, it must be either two layers of underlayment cemented together or a self-adhering polymer-modified bitumen sheet – used in place of normal underlayment, not on top of it. The measurement is the part contractors […]