Abstract: A method of installing a flooring structure is disclosed. The method includes providing an acoustic insulating layer over a sub-floor layer. The method also includes providing an underlayment layer over the acoustic insulating layer. The provided underlayment layer includes gypsum concrete having a water-resistant additive. Also disclosed is a flooring structure. The flooring structure includes an acoustic insulating layer over a sub-floor layer. The flooring structure also includes an underlayment layer having a first side and a second side opposite the first side. The underlayment layer includes gypsum concrete having a water-resistant additive. Additionally disclosed is a gypsum concrete flooring underlayment product. The product includes a mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate. The product also includes a silane-based powder intermixed with the mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate.

Abstract: A sound control mat includes a waterproof separation layer, an entangled monofilament structure, and a meltblown nonwoven. The sounds control mat provides improved sound control such as improved impact insulation.

Abstract: Methods for installing underlayment systems include the steps of laying at least one piece of a pre-formed board over at least one first portion surface area of a sub-floor. The pre-formed board is preferably fire-resistant gypsum board, which may also be water- and/or moisture-resistant. A second portion surface area of the sub-floor, which is adjacent to each first portion surface area, is designated to receive a poured underlayment after a tub is installed over the laid at least one piece of pre-formed board. In some instances, a sound mat may be laid over each first portion surface area of the sub-floor, prior to laying the at least one piece of the pre-formed board, and, then, another sound mat may be laid over the second portion surface area of the sub-floor, after laying the at least one piece of pre-formed board and prior to pouring the poured underlayment.

Abstract: An acoustically insulating product for acoustically insulating a building structure includes a base entangled net material, and an acoustical nonwoven material. The acoustical nonwoven material is on at least one side of the base entangled net material. The acoustical nonwoven material has an increase in impact insulation class of 6 or greater.

Abstract: A water vapor barrier material for a building structure includes a base entangled net material and a composite nonwoven. The composite nonwoven includes a film layer with a nonwoven layer on each side of the film layer. The film layer has a water vapor transmission rate of less than 10.0 g-MIL/100-in2/day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.

Abstract: The invention includes a corrugated decking flooring system. The corrugated decking flooring system can include a corrugated deck having at least two flutes and a trough between the flutes. A sound insulation layer generally conformal with both the flutes and the troughs of the corrugated deck can be provided. An underlayment layer can be provided over the sound insulation layer.

Abstract: The invention includes a corrugated decking flooring system. The corrugated decking flooring system can include a corrugated deck having at least two flutes and a trough between the flutes. A sound insulation layer generally conformal with both the flutes and the troughs of the corrugated deck can be provided. An underlayment layer can be provided over the sound insulation layer.

Abstract: Methods for installing underlayment systems include the steps of laying at least one piece of a pre-formed board over at least one first portion surface area of a sub-floor. The pre-formed board is preferably fire-resistant gypsum board, which may also be water- and/or moisture-resistant. A second portion surface area of the sub-floor, which is adjacent to each first portion surface area, is designated to receive a poured underlayment after a tub is installed over the laid at least one piece of pre-formed board. In some instances, a sound mat may be laid over each first portion surface area of the sub-floor, prior to laying the at least one piece of the pre-formed board, and, then, another sound mat may be laid over the second portion surface area of the sub-floor, after laying the at least one piece of pre-formed board and prior to pouring the poured underlayment.

Abstract: A height indicating instrument useful for preparing flat and level cementitious floors over an uneven sub floor. The instrument includes first and second rod assemblies, the first having a foot engagable with the surface of a sub floor and the second assembly operatively attached to and moveable axially with respect to the first assembly. The second assembly includes a height indicator to indicate the desired underlayment height, and carries a laser beam detector. A laser beam generator generates a horizontal laser beam detectable by the laser beam detector. Vertical movement of the second rod assembly with respect to the first rod assembly to horizontally align the detector with the generator simultaneously moves the height indicator to adjust elevation of the latter with respect to the foot. At a plurality of locations on the uneven sub floor, slurry is poured until the slurry rises into contact with the height indicator at each such location.

Abstract: Mixing machine for mixing cement components with water to provide a pumpable slurry, and a method for its use. The machine includes a mixing vessel having an inlet for water at an average flow rate and for dry cement components, and a water tank for supplying water at a high flow rate to the mixing vessel and having an internal diaphragm separating the tank into water and air compartments. The water tank includes an inlet for admitting water to the water compartment and a conduit communicating the water compartment with the mixing vessel and capable of accommodating the flow of water at an average flow rate substantially greater than the average flow rate of water into the water compartment. The conduit includes a water meter and valve to monitor and regulate, respectively, the quantity of water supplied to the mixing vessel.