Abstract: A method for making fire retardant material including fire retardant cellulosic insulation is described. The method includes an arrangement for adding one or more feedstocks and a fire retardancy chemical compound to a common blend tank prior to feedstock drying. The one or more feedstocks may include at least one virgin pulp stock feed and at least one recycled material stock feed. The amount and type of both the virgin feedstock and the recycled material feedstock is selectable. Old newsprint (ONP) may be one type of recycled material feedstock. Another suitable type of recycled material feedstock is old corrugated containers (OCC). The method further includes retaining the fiber feedstock and the chemical compound together for enough time to ensure adherence or impregnations of enough of the chemical to the fibers after the drying process. Fluffing or fiberizing of the treated fibers may be accomplished under less severe conditions than ordinarily employed when making conventional cellulose insulation.

Abstract: A method for making fire retardant material including fire retardant cellulosic insulation. The method includes an arrangement for adding one or more feedstocks and a fire retardancy chemical compound to a common blend tank prior to feedstock drying. The one or more feedstocks may include at least one virgin pulp stock feed and at least one recycled material stock feed. The amount and type of both the virgin feedstock and the recycled material feedstock is selectable. Old newsprint (ONP) may be one type of recycled material feedstock. Another suitable type of recycled material feedstock is old corrugated containers (OCC). The method further includes retaining the fiber feedstock and the chemical compound together for enough time to ensure adherence or impregnations of enough of the chemical to the fibers after the drying process. Fluffing or fiberizing of the treated fibers may be accomplished under less severe conditions than ordinarily employed when making conventional cellulose insulation.

Abstract: A method for making fire retardant material including fire retardant cellulosic insulation. The method includes an arrangement for adding one or more feedstocks and a fire retardancy chemical compound to a common blend tank prior to feedstock drying. The one or more feedstocks may include at least one virgin pulp stock feed and at least one recycled material stock feed. The amount and type of both the virgin feedstock and the recycled material feedstock is selectable. Old newsprint (ONP) may be one type of recycled material feedstock. Another suitable type of recycled material feedstock is old corrugated containers (OCC). The method further includes retaining the fiber feedstock and the chemical compound together for enough time to ensure adherence or impregnations of enough of the chemical to the fibers after the drying process. Fluffing or fiberizing of the treated fibers may be accomplished under less severe conditions than ordinarily employed when making conventional cellulose insulation.

Abstract: A method for installing dry cellulose fiber insulation into a stud cavity includes the initial step of attaching a non-elastic reinforced polyethylene vapor barrier membrane to the interior faces of the studs, plate and sill forming a plurality of stud cavities in a building structure having an exterior wall. The staples are oriented vertically and spaced apart along the stud interior faces a distance which permits excess air pressure to escape between the membrane and the stud interior face between the staples. The staples are oriented horizontally along the sill and plate interior faces. An access hole is then formed in the membrane to access each stud cavity, and located approximately one-fourth to one-fifth of the distance downwardly from the upper sill to the lower plate. A pneumatic hose is then inserted through the access hole with the dispensing nozzle located at the bottom of the stud cavity.

Abstract: A device for damming insulation around and away from a heat producing object such as a recessed light fixture is disclosed in its preferred form according to the teachings of the present invention. Specifically, the insulation damming device is formed by the interconnection of one or more insulation damming members to form an enclosure of a size and shape arranged to fit around the heat producing object. The damming members are generally planar and are formed in the preferred embodiment of sheet metal. Top, middle, and bottom extension members extend from the first end edge of the damming member and positively interconnect with top, middle, and bottom series of slots extending along the length of the damming member from the second end edge of the damming member. To increase stability and position retention, apertures are formed in the damming member adjacent the bottom edge for receiving a wire for attachment to a support member.

Abstract: A dam assembly for preventing the build up of thermal insulation around a recessed lighting fixture in the attic space of a building which includes a plurality of fire-proof, pre-cut panels which may be joined together at the site by clips so as to surround the portion of the fixture extending into the attic space and allow free circulation of air thereabouts so that excessive heat build up is avoided. The dimensions of the pre-cut panels are such that joist spacings of 16 and 24 inch on centers can be accommodated.