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Approval Letters from Finished Roofing Manufacturers
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1GAF 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
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2Certainteed Shingles on ZIP System Sheathing
An approval letter from CertainTeed Corp. regarding the installation of their product over ZIP System Sheathing.
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3IKO 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.
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4Owens 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.
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5Atlas 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.
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6Sunlast 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.
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7Metal 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.
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8TAMKO 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
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9TAMKO Metal Shingles on ZIP System SheathingTamko, 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