Barrier laminate and method for sealing gaps in building construction
AssigneeMinnesota Mining and Manufacturing Company
InventorsJoseph D. Lawless, Robert H. Heil, Scott R. Pribnow, Duncan R. Russell
Life of this patent
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Abstract
A barrier laminate for attachment to the outer surface of a structure, such as a house prior to attachment of its siding, to cover joints between structural members assembled to form the structure. The barrier laminate comprises a flexible elongate barrier layer having minute passageways between its major surfaces affording passage of water vapor while restricting the passage of liquid water and air between its major surfaces. Means providing an exposed layer of pressure sensitive adhesive along each of the opposite edges of the barrier layer are provided for adhering the barrier layer to structural members on opposite sides of a joint therebetween.
Claims8
A barrier laminate for attachment to the outer surface of a structure, such as a house prior to attachment of its siding, to cover joints between structural members assembled to form the structure, said barrier laminate comprising:
- a flexible elongate barrier layer having opposite edges and opposite first and second major surfaces said barrier layer having minute passageways between said major surfaces affording passage of water vapor between said major surfaces while restricting the passage of liquid water and air between said major surfaces;
- and
- an exposed layer of pressure sensitive adhesive coated along each of the opposite edges of the barrier layer for adhering the barrier layer to structural members on opposite sides of a joint therebetween such that exterior liquid water and air are each restricted from entering the structure while water vapor is permitted to pass through the barrier layer intermediate the opposite edges, thus permitting any moisture trapped interior of the barrier laminate to escape as water vapor.
A method for providing a barrier against the infiltration of air and moisture into a structure, such as a house prior to attachment of siding thereto, through joints between the structural members defining an outer surface of the structure, said method comprising:
- providing a barrier laminate comprising a flexible elongate barrier layer having opposite edges, opposite first and second major surfaces, and minute passageways between said major surfaces affording passage of water vapor between said major surfaces while restricting the passage of liquid water and air between said major surfaces;
- and an exposed layer of pressure sensitive adhesive coated along each of said opposite edges;
- and
- adhering the exposed layer of pressure sensitive adhesive along each of the opposite edges of the barrier layer on the outer surface of structural members on opposite sides of a joint therebetween with the barrier layer extending longitudinally along and bridging widthwise across the joint such that exterior liquid water and air are each restricted from entering the structure while water vapor is permitted to pass through the barrier layer intermediate the opposite edges, thus permitting any moisture trapped interior of the barrier laminate to escape as water vapor.
Dependencies are inferred from the claim text.