Exterior finish system
AssigneeConstruction Research & Technology GmbH
InventorsWilliam F. Egan, Eric S. Auman, Steffen Wache, Kevin Brands, Lea Cruz, Sandra R. Sprouts
Life of this patent
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Abstract
Disclosed is an exterior finish system for building structures that includes a water pervious adhesive for securing an insulation layer to a water resistive barrier applied to a building wall substrate. Also disclosed is a building structure such as a building column or wall that includes the finish system and a method of using the finish system to assemble a building structure such as column or wall.
Claims30
A building wall comprising:
- a building wall substrate;
- a water resistive barrier layer applied to a portion of said building wall substrate;
- an insulation layer having opposite interiorly and exteriorly facing surfaces;
- a water pervious adhesive layer disposed between said water resistive barrier layer and said insulation layer adhering said insulation layer to said building wall substrate, said water pervious adhesive layer comprising an adhesive comprising internal voids that create one or more drainage paths within said water pervious adhesive layer, said water pervious adhesive layer comprising a polymer-modified cementitious adhesive comprising from about 32 to about 70 weight percent of at least one cementitious material component, from about 5 to about 30 weight percent of a polymer component, from about 0.3 to about 32 weight percent of at least one aggregate component, and from 0 to about 30 weight percent water;
- and
- an exterior finish material applied to at least a portion of the exteriorly facing surface of said insulation layer.
An exterior finish system for building walls comprising:
- an insulation layer having first and second opposite facing surfaces;
- a water resistive layer adjacent said first opposite facing surface of said insulation layer;
- a water pervious adhesive layer adjacent said second opposite facing surface of said insulation layer, said water pervious adhesive layer comprising an adhesive comprising internal voids that create one or more drainage paths within said water pervious adhesive layer, said water pervious adhesive layer comprising a polymer-modified cementitious adhesive comprising from about 32 to about 70 weight percent of at least one cementitious material component, from about 5 to about 30 weight percent of a polymer component, from about 0.3 to about 32 weight percent of at least one aggregate component, and from 0 to about 30 weight percent water;
- and
- an exterior finish material applied to said second opposite facing surface of said insulation layer.
A method of finishing a building structure comprising:
- applying a water pervious adhesive layer between a surface of one of a building wall substrate or a water-resistive barrier and an insulation layer, said water pervious adhesive layer comprising an adhesive comprising internal voids that create one or more drainage paths within said water pervious adhesive layer, said water pervious adhesive layer comprising a polymer-modified cementitious adhesive comprising from about 32 to about 70 weight percent of at least one cementitious material component, from about 5 to about 30 weight percent of a polymer component, from about 0.3 to about 32 weight percent of at least one aggregate component, and from 0 to about 30 weight percent water;
- adhering said insulation layer to said building wall substrate with said water pervious adhesive layer disposed therebetween;
- and
- applying an exterior finish material to at least a portion of an exteriorly facing surface of said insulation layer.
Dependencies are inferred from the claim text.