The big question is, “Do I install the ice and water shield over or under the felt or synthetic underlayment?”
The next question, “Should I install the IWS over or under the existing wall flashing?”
Ice and water shield is a water proof underlayment designed to use in vulnerable areas on the roofs deck. The area where a wall and roof intersect is a vulnerable area and ideal for installing a water proof underlayment. Integrity Roofing and Painting will demonstrate our proven technique for installing IWS along the wall abutment.