HPD Collaborative — HPD Public Repository

HPD Public Repository

Withdrawn HPDs

Introducing Program Pre-Check Dashboards

1–1 of 1 HPDs

Filter results

  1. Expired: Root Bloc 20/Henry Company/2020-04-15
    Cover of Root Bloc 20 — open the PDF

    Open the PDF · HPD 9433

    HPD has expired. Expiration Date: 2023-04-15

    Please enter your email address to download the file.

    Root Bloc 20 secondary root barrier is an optional addition to prevent again root penetration. Typically used in an intensive vegetative roofing assembly, Root Bloc 20 is a flexible, polymeric geomembrane liner.