Ice and Water Shield Installation

What This Service Involves

Ice and water shield is a rubberized, self-sealing membrane that bonds directly to the deck and grips around every nail driven through it. In the Cascades foothills and cooler Puget Sound neighborhoods, freeze-thaw cycles create ice dams at the eaves that back water uphill under the shingles, and this membrane is the only reliable defense. We concentrate it at eaves, valleys, skylights, chimneys, and low-slope sections where standing water and driven rain do the most damage. Because it is fully adhered, it keeps water out even if the roof covering above it is ever compromised in a storm.

Benefits

Blocks ice-dam water from backing up under shingles at the eaves; Self-seals around fasteners to stop leaks at every nail penetration; Protects valleys and transitions where water volume concentrates; Guards skylight and chimney perimeters that are prone to leaks; Delivers a fully bonded barrier that works even under a damaged roof

Our Process

1) Clean and dry the target areas so the membrane can fully adhere; 2) Prime any dusty or uneven surfaces for a reliable bond; 3) Peel and roll the membrane onto eaves, valleys, and penetrations with firm pressure; 4) Overlap seams and integrate with the field underlayment for a continuous seal

What Affects the Cost

Linear footage of eaves, valleys, and detail areas to be covered; Membrane brand and thickness specified for the roof; Number of penetrations such as skylights, vents, and chimneys; Local code requirements for eave coverage in colder zones; Roof pitch and access affecting installation time

Best Time of Year

Ice and water shield is best installed before the cold, wet winter months so eaves and valleys are protected ahead of the first freeze-thaw cycles.