inventor calls it,
Ice and Water Shield ... another version is called WinterGuard ... local roofing place lists it as IceGard, might be another company ... some version of it will be available anyplace that deals roofing supplies
no foil, just a 'bullet proof' asphalt-polymer roll roofing meant to be used as a starter course underlay .... pretty thick, very sticky backed and rubbery tough, similar to "Peel n Seal", which is intended for hip and valley underlay, so narrow rolls
Bill
