Building insulation system

Abstract

Insulated building wrap for use on a building wall includes fiberglass insulation laminated to a building wrap material. A building wall that includes the building wrap includes framing studs, an interior wallboard secured to the framing studs, cavity insulation between pairs of the framing studs, exterior sheathing secured to the framing studs, the insulated building wrap, and a decorative external fascia disposed over the insulated building wrap.

1 - 20 . (canceled) 
     
     
         21 . A building wall comprising:
 a plurality of framing studs;   an interior wallboard secured to the framing studs;   cavity insulation positioned between pairs of the framing studs;   exterior sheathing secured to the framing studs;   an insulated building wrap secured to an exterior surface of the exterior sheathing; and   a decorative external fascia disposed over the insulated building wrap;   wherein the insulated building wrap includes fiberglass insulation laminated to a building wrap material, wherein the fiberglass insulation is binderless and has an R value greater than or equal to 4 per inch, and wherein the insulated building wrap is flexible enough to be rolled onto a roll.   
     
     
         22 . The building wall of  claim 21 , wherein the insulated building wrap has a compressive strength at 25% deformation of the fiberglass insulation which is less than 100 lbs/ft 2 . 
     
     
         23 . The building wall of  claim 21 , wherein the insulated building wrap does not crack when bent over a 1.6 mm diameter mandrel at a temperature of 32° F. 
     
     
         24 . The building wall of  claim 21 , wherein a loss on ignition of the insulated building wrap is less than 10%. 
     
     
         25 . The building wall of  claim 21 , wherein a loss on ignition of the insulated building wrap is less than 5%. 
     
     
         26 . The building wall of  claim 21 , wherein the insulated building wrap has an R value of greater than or equal to 4.5 per inch. 
     
     
         27 . The building wall of  claim 21 , wherein the insulated building wrap has an R value of greater than or equal to 5 per inch. 
     
     
         28 . The building wall of  claim 21 , wherein the insulated building wrap has an R value of greater than or equal to 7 per inch. 
     
     
         29 . The building wall of  claim 21 , wherein the insulated building wrap has an R value between 4 per inch and 7.5 per inch. 
     
     
         30 . The building wall of  claim 21 , wherein the insulated building wrap has a thickness between 0.5 inches and 1.5 inches. 
     
     
         31 . A building wall comprising:
 a plurality of framing studs;   an interior wallboard secured to the framing studs;   cavity insulation positioned between pairs of the framing studs;   exterior sheathing secured to the framing studs;   an insulated building wrap secured to an exterior surface of the exterior sheathing; and   a decorative external fascia disposed over the insulated building wrap;   wherein the insulated building wrap includes fiberglass insulation laminated to a building wrap material, wherein the fiberglass insulation is binderless and has an R value greater than or equal to 4 per inch, and wherein the insulated building wrap does not crack when bent over a 1.6 mm diameter mandrel at a temperature of 32° F.   
     
     
         32 . The building wall of  claim 31 , wherein the insulated building wrap has a compressive strength at 25% deformation of the fiberglass insulation which is less than 100 lbs/ft 2 . 
     
     
         33 . The building wall of  claim 31 , wherein a loss on ignition of the insulated building wrap is less than 10%. 
     
     
         34 . The building wall of  claim 31 , wherein a loss on ignition of the insulated building wrap is less than 5%. 
     
     
         35 . The building wall of  claim 31 , wherein the insulated building wrap has an R value of greater than or equal to 4.5 per inch. 
     
     
         36 . The building wall of  claim 31 , wherein the insulated building wrap has an R value of greater than or equal to 5 per inch. 
     
     
         37 . The building wall of  claim 31 , wherein the insulated building wrap has an R value of greater than or equal to 7 per inch. 
     
     
         38 . The building wall of  claim 31 , wherein the insulated building wrap has an R value between 4 per inch and 7.5 per inch. 
     
     
         39 . The building wall of  claim 31 , wherein the insulated building wrap has a thickness between 0.5 inches and 1.5 inches.