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Approval Letters from Finished Roofing Manufacturers


  • 1
    GAF Shingles on ZIP System Sheathing

    This letter confirms that GAF roofing products are approved for use with ZIP System Sheathing and carry the full limited warranty, provided the installation requirements are followed


  • 2
    Certainteed Shingles on ZIP System Sheathing

    An approval letter from CertainTeed Corp. regarding the installation of their product over ZIP System Sheathing.


  • 3
    IKO Shingles on ZIP System Sheathing

    This letter confirms that IKO premium roofing products are approved for use with ZIP System Sheathing and carry the full limited warranty, provided the installation requirements are followed.


  • 4
    Owens Corning Shingles on ZIP System Sheathing

    This letter confirms that it is acceptable to apply Owens Corning shingles over ZIP System Sheathing, provided the following installation requirements are met.


  • 5
    Atlas Shingles on ZIP System Sheathing

    Atlas Roofing Corporation will accept the installation of all Atlas asphalt shingle products over ZIP System Sheathing, provided the following conditions are met.


  • 6
    Sunlast Metal Panels on ZIP System Roof

    This approval letter confirms that it is acceptable for Sunlast Metal roof panels to be installed directly over ZIP System roof sheathing, provided the following conditions are met.


  • 7
    Metal Sales Roof on ZIP System Sheathing

    This letter confirms that it is acceptable to apply Metal Sales Manufacturing Corporation metal roof panels over ZIP System Sheathing under the listed conditions.


  • 8
    TAMKO Fiberglass/Asphalt Shingles on ZIP System Sheathing

    This letter confirms that TAMKO Building Products, Inc. will warrant its fiberglass/asphalt shingles, and Lamarite composite shingles when properly installed over Huber Engineered Woods ZIP System Roof sheathing


  • 9
    TAMKO Metal Shingles on ZIP System Sheathing
    Tamko, metal panels, metal

    This letter confirms that TAMKO Building Products, Inc. will warrant its MetalWorks steel shingles when properly installed over Huber Engineered Woods ZIP System Roof sheathing