Fibrous Insulation Batts Having One Or More Slits And Methods For Installing Them

Abstract

Disclosed herein are fibrous insulation batts that include a body of fibrous insulation having a first face and a second face that are substantially parallel to each other, and a third face and a fourth face that are substantially parallel to each other. The body of fibrous insulation also includes a first slit that extends from the second face toward, but stopping short of, the first face. The first slit is substantially parallel to the third face. The body of fibrous insulation further includes a facing having a first portion that is attached to the first face, a second portion configured to extend over a portion of the third face, and a third portion configured to extend over a portion of the fourth face.

What is claimed is: 
     
         1 . A fibrous insulation batt comprising:
 a body of fibrous insulation having
 a first face and a second face that are substantially parallel to each other; 
 a third face and a fourth face that are substantially parallel to each other and substantially perpendicular to the first and second faces; and 
 a first slit that extends from the second face toward, but stopping short of, the first face, wherein the first slit is substantially parallel to the third face; and 
   a facing comprising a first portion that configured to be extendable over the first face, a second portion configured to be extendable over a portion of the third face, and a third portion configured to be extendable over a portion of the fourth face.   
     
     
         2 . The fibrous insulation batt of  claim 1 , wherein the fibrous insulation batt is composed of a single portion of interwoven fibrous material. 
     
     
         3 . The fibrous insulation batt of  claim 1 , wherein the body of fibrous insulation comprises one or more of fiberglass material, mineral wool, stone wool, cotton, animal wool, hemp wool, or cellulose. 
     
     
         4 . The fibrous insulation batt of  claim 1 , wherein the first portion of the facing is attached to the second face of the body of fibrous insulation, with the second section being configured to be foldable up along the third face of the body of fibrous insulation and/or the fourth section being configured to be foldable up along the fourth face of the body of fibrous insulation. 
     
     
         5 . The fibrous insulation batt of  claim 1 , wherein the second portion of the facing comprises a first section having a pull strength of at least 1 pound per linear foot, and wherein the first section of the second portion of the facing is configured to be folded over the second section of the second portion of the facing. 
     
     
         6 . The fibrous insulation batt of  claim 1 , wherein the facing further comprises:
 a first tab that extends from a line where the first portion and the second portion meet, and   a second tab that extends from a line where the first portion and the third portion meet.   
     
     
         7 . The fibrous insulation batt of  claim 6 , further comprising an adhesive material attached to (i) the first tab of the facing such that the adhesive material faces away from the first portion of the facing and/or (ii) the second tab of the facing such that the adhesive material faces away from the first portion of the facing. 
     
     
         8 . The fibrous insulation batt of  claim 1 , wherein the first slit is offset from the third face by a distance in the range of 1 inch to 4 inches. 
     
     
         9 . The fibrous insulation batt of  claim 1 , wherein the first slit extends from the second face toward the first face for a for a distance in the range of 3 inches to 8 inches. 
     
     
         10 . The fibrous insulation batt of  claim 1 , further comprising a second slit that extends from the second face toward, but stopping short of, the first face, wherein the second slit is substantially parallel to the fourth face. 
     
     
         11 . The fibrous insulation batt of  claim 10 , wherein the second slit is offset from the fourth face by a distance in the range of 1 inch to 4 inches. 
     
     
         12 . The fibrous insulation batt of  claim 11 , wherein the second slit extends from the second face toward the first face for a for a distance in the range of 3 inches to 8 inches. 
     
     
         13 . A fibrous insulation batt according to  claim 1 , disposed such that a portion of the body of fibrous insulation that is between the first slit and the third face is compressed against a first rafter that extends from the roof deck and the second face of the body of fibrous insulation that is between the first slit and the fourth face faces a roof deck. 
     
     
         14 . A fibrous insulation batt according to  claim 13 , wherein a portion of the body of fibrous insulation that is between the first slit and the fourth face is disposed between the first rafter and a second rafter extending from the roof deck. 
     
     
         15 . A fibrous insulation batt according to  claim 14 , wherein the second portion of facing is attached to the first rafter, and the third portion of the facing is attached to the second rafter. 
     
     
         16 . The fibrous insulation batt according to  claim 15 , wherein the second portion of the facing is attached to a surface of the first rafter that faces away from the second rafter. 
     
     
         17 . The fibrous insulation batt of  claim 13 , further comprising a second slit that extends from the second face toward, but stopping short of, the first face, wherein the second slit is substantially parallel to the fourth face, a portion of the body of body of insulation between the second slit and the fourth face not being compressed against a rafter. 
     
     
         18 . The fibrous insulation batt of  claim 13 , further comprising a second slit that extends from the second face toward, but stopping short of, the first face, wherein the second slit is substantially parallel to the fourth face, a portion of the body of body of insulation between the second slit and the fourth face being compressed against a second rafter extending from the roof deck. 
     
     
         19 . A method of installing any a fibrous insulation batts of  claim 1 , the method comprising:
 placing a portion of the second face of the body of fibrous insulation that is between the first slit and the fourth face such that the portion of the second face faces a roof deck;   compressing, against a first rafter that extends from the roof deck, a portion of the body of fibrous insulation that is between the first slit and the third face.   
     
     
         20 . The method of  claim 19 , further comprising
 attaching the second portion of the facing to the first rafter, and   attaching the third portion of the facing to a second rafter that extends from the roof deck.