Patent ID: 8875472

Claim:
A method of forming an interior surface of a building wall, said building wall including a frame formed of a plurality of studs interconnecting a top plate and a bottom plate, thereby forming insulative cavities between said studs, said building wall being backed by sheathing, each of said studs having an interior face, comprising the steps of: spraying a material selected from a foamable material and a foamable reaction mixture to said interior face of said studs, wherein said spraying comprises: a) delivering a first component including at least one functionalized resin selected from a functionalized water-dispersible resin and a functionalized water-soluble resin through a first delivery line to an application device; b) delivering a second component including a crosslinking agent that crosslinks at or about room temperature into said application device, wherein one or both of said first and second component includes a blowing agent, and wherein one or both of said first and second component includes a tackifier; and c) mixing said first and second components within said application device to form said foamable reaction mixture by permitting said crosslinking agent and said at least one functionalized resin to chemically react while said blowing agent initiates a foaming reaction and forms a tacky, elastomeric foam; wherein the material is sprayed along an interface between the exterior sheathing and the bottom plate, along the top plate, and along the vertical length of the studs; and positioning an interior member on said elastomeric foam, wherein said elastomeric foam affixes said interior member to said interior face of said studs, and wherein said elastomeric foam, said foamable material and said foamable reaction mixture are free of isocyanate.