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US 8,997,434 B1Granted
Method of installing a flooring system utilizing gypsum underlayments
AssigneeUnited States Gypsum Company
InventorsDennis Albert Socha, John Ellicson
Life of this patent
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Abstract
A method of installing a flooring system including pouring a gypsum underlayment on a substrate, allowing the underlayment to set, but not dry. A water-borne epoxy sealer is provided and applied to the wet, but set, underlayment.
Claims9
A method of installing a flooring system comprising:
- pouring a gypsum underlayment on a substrate;
- allowing the underlayment to set, but not dry;
- providing a water-borne sealer including a hardener, a hydrophobic epoxy resin and water;
- and
- applying the sealer to the wet, but set underlayment, wherein the sealer partially seals the underlayment to promote permeation of water vapor through the sealer;
- and applying an adhesive to the gypsum underlayment less than 4 hours after the step of applying the sealer to the gypsum underlayment.
3 more elements
A method of installing a flooring system comprising:
- pouring a gypsum underlayment on a substrate;
- allowing the underlayment to set, but not dry;
- providing a water-borne sealing including a hardener, a hydrophobic epoxy resin and water;
- applying the sealer to the wet, but not set underlayment, wherein the sealer partially seals the underlayment to promote permeation of water vapor through the sealer;
- and applying an elastomeric water-proofing and crack-isolation membrane within 2-4 hours after the step of applying the sealer to the gypsum underlayment.
2 more elements
Dependencies are inferred from the claim text.