Building Permit Glossary
Ice and Water Shield
A self-adhering roofing membrane used in vulnerable areas to resist water intrusion from ice dams and wind-driven rain.
RoofingExterior work
Applies to
Roofing · Roof replacement
Project example
A roof replacement plan may call for ice barrier at eaves, valleys, or other locations defined by the adopted code and local conditions.
Also called
ice barrierpeel-and-stick underlayment
Where this term shows up in permit work and how it affects the project
Material and installation details can affect inspection, warranty discussions, and the contractor's scope; local snow and climate rules matter.
If this term appears in a form, plan comment, or local ordinance, start with the building permit guide, compare it against the zoning permit guide, then use the permit guide directory to find the right local path.