Segmented band joist batts and method of manufacture

Abstract

Insulation is partially divided into segments (200a), wherein each of the segments (200a) has an R-value and thickness and has length and width dimensions of, at least somewhat greater than 9.5 inches by at least somewhat greater than 14.5 inches to fill band joist cavities between spaced apart joists (106); and the batt (200) is either three segments (200a) in length or four segments (200a) in length, or is folded at intervals of the three segments (200a) in length or four segments in length (200a), and the batt (200) has a width of either one segment (200a) or two segments (200a), and the segments (200a) of the same batt (200) are partially divided from one another and remain in the batt (200) until separated at the point of use or installation.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a Divisional application of U.S. Ser. No. 10 / 851,509, filed May 21, 2004 (D0932-00518). This application claims the benefit of U.S. provisional application 60 / 540,764 filed Jan. 30, 2004 (D0932-00441).FIELD OF THE INVENTION[0002]The invention relates to insulation products for insulating between framing members of a building.BACKGROUND[0003]With reference to FIG. 1, a basement or crawl space of a building has an exterior foundation wall (100) for the most part below grade level of the earth. The top of the wall (100) is covered with a sill or sill plate (102) of wood or other plate material. Sometimes the sill plate is omitted. A frame for supporting a floor is constructed, as follows. Framing members of the building known as joist plates or headers (104) are sawn lumber or boards, which are laid edgewise to span along, either the top of the sill plate (102), or the top of the basement wall (100) in the absence of a sil...

AI Technical Summary

Benefits of technology

[0012]According to the invention, insulation capable of compression is precut into batts, and the batts are partially divided into segments, for filling band joist cavities with a whole number of the segments between spaced apart joists. An advantage of the invention resides in an insulation product having insulation segments with a set of fixed dimensions to insulate band joist cavities of different widths and lengths, as defined by joists of different widths and spaced apart on different centers. Another advantage of the invention is that the segments are precut to reduce scrap that would result from cutting the batt into segments that are either too small or too generous in size. A further advantage of the invention is that installation time is saved by reducing the time for measuring and cutting the insulation to desired sizes.

[0013]By installing the segments in different orientations, the segments adapt by compression to fill band joist cavities of different widths and lengths. Measuring and cutting the insulation is no longer necessary, and after removing one or more of the segments, the remainder of the batt has one or more segments, which have useful widths and lengths, thereby avoiding a potential source of scrap.

[0014]According to another embodiment of the invention, the segments are partially divided from one another, and advantageously remain connected in a batt or in a more lengthy folded batt until they are separated at the point of use or installation.

[0015]According to another embodiment of the invention, a batt of insulation capable of compression is precut into segments of said insulation having a desired R-value and thickness, and further having a set of fixed dimensions, such that a whole number of said segments fills a band joist cavity.

[0016]According to an embodiment of the invention, the segments of insulation have widths and lengths, such that a whole segment adapts to cover the width of a band joist cavity between two joists, and a whole number of segments are oriented and installed beside another to fill a band joist cavity between two joists on relatively wide centers. The segments are installed in the same orientation or in different orientations to adapt to band joist cavities of different widths and lengths.

[0017]Another embodiment of the invention pertains to a method of making presently manufactured insulation having different widths, into segments of insulation having a set of fixed dimensions that fill band joist cavities of different widths and lengths with a whole number of segments.

Problems solved by technology

However, if the oversize piece was too generous in size, when the oversize piece could have been smaller, then some amount of insulation was wasted.

Further, after cutting and removing too generous an oversize piece from a batt or roll, the remainder of the batt or roll would become too short for further use, and therefore would be discarded as scrap.

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