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HPD Public Repository

Withdrawn HPDs

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  1. DensDeck Gypsum Panels/Georgia-Pacific/2026-07-17

    Open the PDF · HPD 38135

    Expiration Date: 2029-07-17

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    This HPD covers the following products: DensDeck® Roof Board, DensDeck® Fireguard® Roof Board, DensDeck® Prime Roof Board, DensDeck® Prime Fireguard® Roof Board, DensDeck® ProFast™ Prime Roof Board and DensDeck® StormX® Prime Roof…

  2. Other Dens Product Gypsum Panels/Georgia-Pacific/2026-04-20

    Open the PDF · HPD 33851

    Expiration Date: 2029-04-20

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    This HPD covers the following Glass Mat Faced Gypsum Panels: DensGlass® Sheathing, DensGlass® Fireguard® Sheathing, DensElement® Sheathing and DensGlass® Shaftliner. This broad family of Georgia-Pacific Gypsum LLC glass-mat gypsum panels…

  3. Expired: GlasRoc 2015 Exterior Sheathing/Saint Gobain/2019-03-21

    Open the PDF · HPD 8167

    HPD has expired. Expiration Date: 2022-03-21

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    This HPD covers several GlasRoc Sheathing Products 1/2" GlasRoc Sheathing 2015, 5/8" GlasRoc Sheathing Type X 2015

  4. Expired: Corian®/E. I. du Pont de Nemours and Company/2018-12-17

    Open the PDF · HPD 7217

    HPD has expired. Expiration Date: 2020-10-19

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  5. Expired: MGlass Glass Mat Extended Exposure Gypsum Panels/American Gypsum Company LLC/2021-02-01

    Open the PDF · HPD 13260

    HPD has expired. Expiration Date: 2024-01-29

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    This HPD covers 1/2” M-Glass® Exterior Sheathing with Mold & Moisture Resistance, 5/8” M-Glass® Type X Exterior Sheathing with Mold & Moisture Resistance and 1” M-Glass® Shaft Liner Panels Mold & Moisture Resistance. This family of…