Self adhering roofing membrane with an attached roofing underlayment

Abstract

A self-adhering ice and water roofing membrane, having a roofing underlayment attached to it, wherein the roofing underlayment also serves as the carrier for the release layer, and is needed to transport the self adhering roofing membrane from the manufacturer to the construction site. A splitable adhesive may be used in place of the release layer on the underlayment.

1 . A roofing underlayment product for positioning between a roof deck support and a roof structure providing a continuous waterproof barrier, the underlayment product comprising:
 a self-adhering ice and water roof membrane including a first outer layer, a second layer of protection material and a third self-adhering adhesive layer;   a roof underlayment sheet attached to and forming a seal with one of the first outer layer and the second layer; and,   a release layer applied to the roofing underlayment sheet.   
     
     
         2 . A roofing underlayment product for positioning between a roof support and a roof structure to provide a waterproof barrier, the underlayment product comprising:
 a self-adhering ice and water roof membrane including a first membrane surface layer, a second protection material layer and a third self-adhering adhesive layer;   a roof underlayment sheet attached to and forming a seal with one of the first membrane surface layer and the second protection material layer of the self-adhering ice and water membrane during the manufacturing process of the self-adhering ice and water roofing membrane product, but prior to supplying the final product to a construction site; and,   an adhesive splitable in two layers when peeled apart, where the first layer remaining with the self adhering roof membrane and the second layer remaining with the roofing underlayment material.   
     
     
         3 . A roofing underlayment sheet product which provides a waterproof barrier for a roof structure, the sheet comprising:
 an ice and water barrier having a membrane layer, a waterproofing material layer attached thereto, and an adhesive layer;   a roofing underlayment layer, wherein the first layer of the barrier membrane is in overlapping contact with a corresponding edge of the roofing underlayment layer; and,   a release layer applied to the roofing underlayment layer of the barrier membrane.   
     
     
         4 . The roofing underlayment sheet of  claim 3 , wherein the overlapping contact between the first layer of the barrier membrane and the corresponding edge of the roofing underlayment layer forms a continuous weatherproof seal. 
     
     
         5 . The roofing underlayment sheet of  claim 4 , wherein the weatherproof seal is formed upon manufacturing of the sheet product. 
     
     
         6 . The roofing underlayment sheet of  claim 3 , wherein the roofing underlayment layer is a felt. 
     
     
         7 . The roofing underlayment sheet of  claim 3 , wherein the release layer is a silicone. 
     
     
         8 . The roofing underlayment sheet of  claim 3 , wherein the release layer is applied directly onto the roofing underlayment layer. 
     
     
         9 . The roofing underlayment sheet of  claim 3 , wherein the roofing underlayment layer is one of fully and partially siliconized roofing underlayment. 
     
     
         10 . The roofing underlayment sheet of  claim 9 , wherein the roofing underlayment layer is serrated to permit removal of the underlayment layer away from the release layer and the adhesive layer of the barrier membrane for installation of the sheet. 
     
     
         11 . The roofing underlayment sheet of  claim 3 , wherein an edge of the underlayment layer overlaps a release liner to permit removal of the underlayment layer away from the adhesive layer of the barrier membrane for installation of the sheet. 
     
     
         12 . The roofing underlayment sheet of  claim 3 , wherein the roofing underlayment layer is at least double in width of the barrier membrane and folded over onto itself to permit removal of the underlayment layer away from the adhesive layer of the barrier membrane for installation of the sheet. 
     
     
         13 . The roofing underlayment sheet of  claim 3 , wherein the release layer is replaced by an adhesive layer splitable in two layers when peeled apart, wherein the first layer stays with the membrane and the second layer stays with the roofing underlayment layer. 
     
     
         14 . A roofing underlayment sheet product which provides a weatherproof barrier for a roof structure, the sheet comprising:
 an ice and water barrier membrane having first membrane layer, a second weatherproofing layer attached thereto, and a third adhesive layer;   a roofing underlayment layer having a first end and second end; and,   a release layer applied to the roofing underlayment layer; wherein the first end of the roofing underlayment layer replaces a portion of the first membrane layer and is sealed directly on top of the weatherproofing layer, and wherein the second end of the underlayment layer has a width at least twice that of the barrier membrane and being doubled over onto itself to permit removal of the underlayment layer away from the release layer for installation of the sheet.   
     
     
         15 . A roofing underlayment sheet product which provides a waterproof barrier for a roof structure, the sheet comprising:
 an ice and water barrier membrane having first membrane layer, a second waterproofing material layer attached thereto;   a roofing underlayment layer, wherein a first edge of the roofing underlayment is in contiguous contact with a first edge of the first membrane layer; and,   an adhesive layer splitable into layers when peeled apart for application of the sheet product.