What is ice and water shield and does it prevent ice damming?
Ice and water shield is a rubber membrane that adheres to your roof deck and provides a leak proof barrier in critical areas, such as roof edges, in valleys and around any protruding object on your roof. It will not prevent an ice dam from forming but it will prevent water from entering your home, in the areas it is applied. On some lower slope roofs, we will recommend that it be installed on the entire low slope deck.
