Segmented Band Joist Batts and Method of Manufacture

Abstract

Insulation is partially divided into segments ( 200 a ), wherein each of the segments ( 200 a ) 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 ( 200 a ) in length or four segments ( 200 a ) in length, or is folded at intervals of the three segments ( 200 a ) in length or four segments in length ( 200 a ), and the batt ( 200 ) has a width of either one segment ( 200 a ) or two segments ( 200 a ), and the segments ( 200 a ) 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.

1 . Insulation for insulating band joist cavities, comprising:
 a segmented batt partially divided to provide at least three partially severed segments connected to one another;   each segment having a desired R-value and thickness; and   each segment having a width and length capable of compression, such that a whole number of one or more of said segments adapt by being compressed and by being oriented to fill a length and width of a band joist cavity between joists, wherein the length of the band joist cavity varies by a width of the joists, and the width of the band joist cavity varies by a center spacing of the joists.   
   
   
       2 . The insulation of  claim 1 , wherein;
 the batt has a width of either one segment wide or two segments wide.   
   
   
       3 . The insulation of  claim 1 , comprising:
 a vapor retarder against said segments; and   margins along the vapor retarder for stapling to the joists.   
   
   
       4 . The insulation of  claim 1 , wherein;
 said segments are without a vapor retarder.   
   
   
       5 . The insulation of  claim 1 , wherein;
 four of said segments define a length of said batt.   
   
   
       6 . The insulation of  claim 1 , wherein;
 three of said segments define a length of said batt.   
   
   
       7 . The insulation of  claim 1 , wherein;
 said batt is about 11 inches wide and four segments long, and each segment is about 12.5 inches long.   
   
   
       8 . The insulation of  claim 1 , wherein;
 said batt is about 11 inches wide and three segments long, and each segment is about 16 inches long.   
   
   
       9 . The insulation of  claim 1 , wherein;
 said batt is about 16 inches wide and four segments long, and each segment is about 12.5 inches long.   
   
   
       10 . The insulation of  claim 1 , wherein;
 said batt is about 12.5 inches wide and three segments long, and each segment is about 16 inches long,   
   
   
       11 . The insulation of  claim 1 , wherein;
 said batt is about 25 inches wide and is partially divided into two rows of the segments, wherein each of the segments is about 12.5 inches wide and about 16 inches long.   
   
   
       12 . The insulation of  claim 1 , wherein;
 said batt is about 23 inches wide, about 23.25 inches wide, about 24 inches wide or about 25 inches wide, and each segment is at about 16 inches long.   
   
   
       13 . The insulation of  claim 1 , wherein;
 said batt is partially divided into two rows of said segments.   
   
   
       14 . The insulation of  claim 1 , wherein;
 said batt is about 23 inches wide, about 23.25 inches wide, about 24 inches wide or about 25 inches wide, and each segment is about 16 inches long.