Mineral wool adhesive with reduced moisture permeability
AssigneeOwens Corning Intellectual Capital, LLC
InventorsGregory Godard, Yogesh Deshmukh
Life of this patent
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Abstract
A mineral wool insulation product for insulating and/or waterproofing an exterior of a structure (e.g., a roof) includes a mineral wool substrate, a nonwoven fibrous facer, and a fluorine-free water-resistant adhesive. The adhesive is modified to have a reduced permeability and is provided at the interface between the mineral wool substrate and the nonwoven facer so as to limit water intrusion that might otherwise intrude into the product.
Claims29
An insulation product comprising:
- a unitary substrate including a plurality of interconnected first fibers, a nonwoven facer including a plurality of interconnected second fibers, and a fluorine-free water-resistant adhesive material adhering the substrate and facer together.
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A method of manufacturing a faced mineral wool insulation product, the method comprising:
- providing a unitary substrate including a plurality of interconnected first fibers and a nonwoven facer including a plurality of interconnected second fibers,
- mixing a gypsum cement base, water, and a waterproofing element to form a modified gypsum cement, wherein the waterproofing element displaces a portion of the water;
- applying the modified gypsum cement to at least one of the facer and the substrate to adhere the facer to the substrate.
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A method of insulating a structure comprising:
- mixing a gypsum cement base, water, and a waterproofing element selected from a wax emulsion and a silicon emulsion, to form a modified gypsum cement, wherein the waterproofing element displaces a portion of the water;
- providing a plurality of fibrous insulation members and providing a plurality of nonwoven facers;
- applying the modified gypsum cement to a surface of each of the fibrous insulation members;
- positioning each facer on a surface of a corresponding one of the fibrous insulation members to form a plurality of faced mineral wool products;
- and
- positioning the faced mineral wool products about an exterior of the structure.
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Dependencies are inferred from the claim text.