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Advantage-30 Synthetic Roof Underlayment

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WaterBlock Advantage-30 is designed and manufactured to provide a superior roofing underlayment compared to both asphalt felt products and other synthetic underlayments.

Installation Guides

The WaterBlock Installation Guides will guide you step by step how to install your Window & Door flashing.

  1. General Installation Guide
  2. Create Custom Installation
  3. Recessed Install Guide

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General Installation Guide

Always refer to the window or door manufacturers' installation guidelines for specific directions.
The following installation guide was formatted to meet ASTM-E2112-01.

Follow our 7 step general guide for proper installation.


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