Abstract: Methods and apparatus for mixing and applying a bead of material. For example, the bead of material can be used to seal gaps cracks and seams of a building. The apparatus includes a supply machine and an applicator. The supply machine provides each of the parts of the material to the applicator at a controlled rate. The applicator mixes the parts of the material at a nozzle. The applicator provides a bead (rather than spraying) of the mixed material through the nozzle. The bead of material may be applied in a precise manner to seal gaps, cracks and seams of an existing building and/or the bead may be provided during new construction of a building between components of the building.

Abstract: A spray latex foam for filling wall cavities to enhance the sealing and insulating properties of a building is provided. The spray latex foam includes a latex system and a gaseous coagulating component. In at least one exemplary embodiment, carbon dioxide is included as a gaseous coagulating agent. One latex suitable for use in the spray foam is polyvinylidene chloride (PVDC), which possesses fire retardancy and environmental durability. However, a preferred latex is styrene-butadiene rubber (SBR). The latex system may also include a thixotropic agent, such as Laponite® RD synthetic clay. The spray latex foam is polyurethane-free. A method of preparing a spray latex foam that includes supplying a latex system and adding a gaseous coagulating component to the latex system is also provided.

Abstract: Apparatus for processing board insulation into granules of loosefill insulation are provided. The apparatus includes an upper unit having inlet and outlet ends. The inlet end is configured to receive board insulation. The upper unit is configured to break the board insulation into small pieces. A lower unit is connected to the upper unit. The lower unit is configured to receive the small pieces of board insulation exiting the upper unit. The lower unit includes a plurality of conditioning mechanisms configured to condition the small pieces thereby resulting in granules of loosefill insulation. The lower unit further includes a distribution mechanism configured to distribute the granules of loosefill insulation into an airstream. A distribution hose is connected to the lower unit and configured to convey the granules from the apparatus to a building insulation cavity. The granules are configured for use as loosefill insulation within the building cavity.

Abstract: A system for sealing or insulating a large volume is provided. The system includes an envelope having walls defining an interior. The interior is configured to receive a foaming composition. The envelope is initially configured in a retracted configuration. A foaming composition is configured for insertion into the interior of the envelope. The envelope is configured such that the foaming composition expands the envelope such as to fill a large gap.

Abstract: A system for sealing large volumes or gaps includes a flexible envelope that can assume the shape of the volume when filled with a foaming composition that expands the envelope to the boundaries of the volume. The foaming composition may be integral with the envelope or delivered in bulk by an external device. The foaming composition may be one or multiple parts, typically two parts such as a poly isocyanate and a polyols, in which case it is necessary to keep the two parts separate until foaming is desired. Separation may be accomplished by providing multiple compartments that deliver components via a mixing device into the interior. The envelope may include ribs for structural strength and shaping, and leak pores around its perimeter to enhance bonding and sealing. It may also include perforations for bulk, modular seals or for separation of portions of the envelope to seal irregular shapes.

Abstract: A machine for distributing insulation from a bag of insulation having a cross-sectional shape is provided. The machine includes a chute having an inlet end and an outlet end. The inlet end is oriented in a substantially vertical plane and is configured to receive the bag of insulation. The inlet end has opposing longitudinal sides configured to be substantially horizontal in orientation. The inlet end also has opposing lateral sides connected to the longitudinal sides. The opposing lateral sides are configured to be shorter than the opposing longitudinal sides and further configured to be substantially vertical in orientation. A plurality of shredders is mounted at the outlet end of the chute and is configured to shred and pick apart the insulation. A discharge mechanism is provided for distributing the insulation into an airstream. The chute has a cross-sectional shape that approximates the cross-sectional shape of the bag of insulation.

Abstract: A machine for distributing blowing wool from a bag of compressed blowing wool is provided. The machine includes a shredding chamber configured to shred and pick apart the blowing wool. The shredding chamber includes a plurality of shredders and an agitator. The plurality of shredders and the agitator are configured for rotation. The plurality of shredders and the agitator are configured to rotate at different speeds.

Abstract: A vapor barrier for sealing an interior of a building from an insulation cavity defined by framing members of the building includes a flexible and substantially impermeable sheet having apertures to allow air to exit the insulation cavity during filling of the insulation cavity with loose fill insulation. The vapor barrier also includes one-way valves mounted across the apertures. The valves are configured to allow air flow out of the insulation cavity and into the building interior through the apertures and to prevent air flow and moisture diffusion from the building interior into the insulation cavity.

Abstract: A wall construction air barrier system includes a foundation structure and a frame structure positioned on top of the foundation structure. The frame structure has an exterior surface and the frame structure includes a sill plate. At least one exterior sheathing is attached to the frame structure. The exterior sheathing has an interior surface. A continuous sealing gasket has a lateral portion positioned between the sill plate and the foundation structure and an extension portion positioned between the exterior surface of the frame structure and the interior surface of the exterior sheathing.

Abstract: A machine for distributing insulation from a bag of insulation is provided. The machine includes a chute having an inlet end and an outlet end. The chute is configured to receive the bag of insulation. The inlet end of the chute has a cross-sectional shape that is substantially vertical and the outlet end of the chute has a cross-sectional shape that is substantially horizontal. A plurality of shredders is mounted at the outlet end of the chute and is configured to shred and pick apart the insulation. The machine further includes a discharge mechanism for distributing the insulation into an airstream. The plurality of shredders and the discharge mechanism are positioned beneath the outlet end of the chute, such that the insulation feeds in a substantially vertical direction into the plurality of shredders.

Abstract: A machine for distributing blowing wool from a bag of compressed blowing wool is provided. The machine includes a chute having an inlet end configured to receive the bag of compressed blowing wool. A shredding chamber is positioned downstream from the chute and configured to shred and pick apart the blowing wool. The shredding chamber includes a plurality of shredders configured for rotation. Each shredder includes a plurality of paddle assemblies mounted to a shredder shaft. Each paddle assembly has a plurality of paddles. The paddles have a hardness within the range of 60 A to 70 A Durometer to better grip the blowing wool for shredding and prevent jamming of the blowing wool within the shredder.

Abstract: A machine for distributing blowing wool from a bag of compressed blowing wool is provided. The machine includes a chute having an inlet end configured to receive the bag of compressed blowing wool. A shredding chamber is associated with the chute and configured to shred and pick apart the blowing wool. The shredding chamber includes a plurality of shredders. Each shredder has a plurality of paddle assemblies mounted for rotation on a shredder shaft in a manner such that paddle assemblies on one shredder shaft correspond to paddle assemblies on an adjacent shredder shaft. Each of the plurality of paddle assemblies on one shredder shaft has a major axis and each of the corresponding paddles assemblies on the adjacent shredder shaft has a major axis. The plurality of paddle assemblies is arranged such that the major axes of the corresponding paddle assemblies have an indexed arrangement.

Abstract: A machine for distributing blowing insulation from a bag of compressed blowing insulation is provided. The machine includes a chute having an inlet end configured to receive the bag of compressed blowing insulation. A shredding chamber is associated with the chute. The shredding chamber includes a plurality of shredders configured to shred and pick apart the blowing insulation. The shredding chamber further includes a discharge mechanism mounted for rotation and configured for distributing the blowing insulation into an airstream. The discharge mechanism has a side inlet and includes sealing vane assemblies having vane tips. Rotation of the vane tips forms an arc. The blowing insulation is fed horizontally from the shredding chamber into the side inlet of the discharge mechanism in a manner such that the blowing insulation passes through the arc formed by the rotating vane tips.

Abstract: Machines for distributing loosefill insulation from a package of compressed loosefill insulation are provided. The package of compressed loosefill insulation includes a bag encapsulating a body of compressed loosefill insulation. The machine includes a chute having an inlet end and an outlet end. The inlet end of the chute is configured to receive the package of compressed loosefill insulation. A plurality of shredders is mounted at the outlet end of the chute and configured to shred and pick apart the loosefill insulation. A bag digester is configured to shred the bag into short strips of shredded bag. The short strips of shredded bag are configured to mix with the shredded loosefill insulation. A discharge mechanism is positioned downstream from the bag digester and the shredders and is configured for distributing the shredded loosefill insulation and the short strips of shredded bag into an airstream.

Abstract: A machine for distributing blowing wool from a bag of compressed blowing wool is provided. The machine includes a chute having an inlet end configured to receive the bag of compressed blowing wool. A shredding chamber is associated with the chute and configured to shred and pick apart the blowing wool. The shredding chamber includes a plurality of shredders. Each shredder has a plurality of paddle assemblies mounted for rotation on a shredder shaft in a manner such that paddle assemblies on one shredder shaft correspond to paddle assemblies on an adjacent shredder shaft. Each of the plurality of paddle assemblies on one shredder shaft has a major axis and each of the corresponding paddles assemblies on the adjacent shredder shaft has a major axis. The plurality of paddle assemblies is arranged such that the major axes of the corresponding paddle assemblies have an indexed arrangement.

Abstract: Latex foams for filling cavities and crevices and for forming foamed products are provided. The latex foam includes a functionalized latex, a crosslinking agent and a blowing agent package, and optionally a non-functionalized latex. The foamable compositions may be two-part, having an A-side and a B-side to keep reactants separate until use. The blowing agent package may be the combination of two or more chemicals, such as acid and base, that when mixed together form a gas. In two-part compositions, the acid and base preferably are in separate sides to prevent premature gassing; in alternative one-part compositions, the spray latex foam may include a functionalized latex, a crosslinking agent, and an encapsulated dry acid and dry base. The encapsulating agent may be a protective, non-reactive shell that can be broken or melted at the time of application. The acid and/or base are preferably dry powder particulates, for example milled bicarbonate having a median particle diameter of from about 0.

Abstract: Machines for distributing loosefill insulation from a package of compressed loosefill insulation are provided. The package of compressed loosefill insulation includes a bag encapsulating a body of compressed loosefill insulation. The machine includes a chute having an inlet end and an outlet end. The inlet end of the chute is configured to receive the package of compressed loosefill insulation. A plurality of shredders is mounted at the outlet end of the chute and configured to shred and pick apart the loosefill insulation. A bag digester is configured to shred the bag into short strips of shredded bag. The short strips of shredded bag are configured to mix with the shredded loosefill insulation. A discharge mechanism is positioned downstream from the bag digester and the shredders and is configured for distributing the shredded loosefill insulation and the short strips of shredded bag into an airstream.

Abstract: A machine for distributing insulation from a bag of insulation is provided. The machine includes a chute having an inlet end and an outlet end. The chute is configured to receive the bag of insulation. The inlet end of the chute has a cross-sectional shape that is substantially vertical and the outlet end of the chute has a cross-sectional shape that is substantially horizontal. A plurality of shredders is mounted at the outlet end of the chute and is configured to shred and pick apart the insulation. The machine further includes a discharge mechanism for distributing the insulation into an airstream. The plurality of shredders and the discharge mechanism are positioned beneath the outlet end of the chute, such that the insulation feeds in a substantially vertical direction into the plurality of shredders.

Abstract: A machine for distributing insulation from a bag of insulation is provided. The machine includes a chute having an inlet end and an outlet end. The chute is configured to receive the bag of insulation. The inlet end of the chute has a cross-sectional shape that is substantially vertical and the outlet end of the chute has a cross-sectional shape that is substantially horizontal. A plurality of shredders is mounted at the outlet end of the chute and is configured to shred and pick apart the insulation. A discharge mechanism is configured for distributing the insulation into an airstream. The chute has a cross-sectional shape that approximates the cross-sectional shape of the bag of insulation and the plurality of shredders and the discharge mechanism are positioned beneath the outlet end of the chute.