# US 5,826,388 A · Composite insulating drainage wall system

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- Number: US 5,826,388 A
- Document ID: US5826388A
- Status: Granted
- Kind: A
- Application number: 08/786,666
- Filed: 1997-01-21
- Granted: 1998-10-27
- Earliest claimed: 1997-01-21
- Assignees: K2, Inc.
- Inventors: Michael R. Irving
- Web page: https://patentgrep.com/patent/US5826388A

## CPC

- E04B 1/7612: {in combination with an air space}
- Y02A 30/00: Adapting or protecting infrastructure or their operation
- Y02B 30/90: Passive houses; Double facade technology
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A composite drainage wall system is disclosed wherein the system includes a support backing for engagement with a wall substructure, a layer of insulating material adapted to be spaced from the support backing by means to produce spaced apart draining conduits for directing the flow of moisture formed in the drainage conduits, and an outer layer of mesh reinforced mortar.

## Claims

### Claim 1

A composite insulating drainage wall system in combination with a wall substructure, comprising:
a) a support backing provided with an outer surface and an inner surface and engaging the wall substructure;
b) a flexible, conformable, protective sheeting material supported and in contact with the outer surface of said support backing;
c) a layer of insulating material provided with an outer surface and an inner surface in facing relation with the outer surface of said flexible, conformable, protective sheeting material;
d) means disposed between the outer surface of said flexible, conformable, protective sheeting material and the inner surface of said insulating material to produce generally spaced apart drainage conduits for directing the flow of moisture formed in the drainage conduits;
e) a layer of mesh material disposed on the outer surface of said insulating material; and
f) a layer of mortar applied over and securely engaging said layer of mesh material, to form an outer surface.

### Claim 2 (depends on 1)

The combination according to claim 1, wherein the wall substructure comprises a series of spaced apart vertically extending wooden studs.

### Claim 3 (depends on 1)

The combination according to claim 1, wherein the flexible, conformable, protective sheeting material contacts the outer surface of the support backing from a location about 2 feet from a corner of the wall substructure.

### Claim 4 (depends on 1)

The combination according to claim 1, wherein the flexible, conformable, protective sheeting material completely encircles the wall substructure of a building.

### Claim 5 (depends on 1)

The combination according to claim 1, wherein the flexible, conformable, protective sheeting material is folded and fastened to the inside of an aperture through the wall substructure.

### Claim 6 (depends on 1)

The combination according to claim 1, wherein said layer of insulating material comprises a polyisocyanurate.

### Claim 7 (depends on 1)

The combination according to claim 1, wherein said layer of insulating material is in the form of a substantially rigid board.

### Claim 8 (depends on 1)

The combination according to claim 1, wherein said layer of insulating material comprises a molded expanded polystyrene.

### Claim 9 (depends on 1)

The combination according to claim 1, wherein said means disposed between the outer surface of said flexible, conformable, protective sheeting material and the inner surface of said insulating material comprises a plurality of spaced apart strips of moisture impervious material.

### Claim 10 (depends on 9)

The combination according to claim 9, wherein said strips are formed of said support backing material.

### Claim 11 (depends on 1)

The combination according to claim 1, wherein said means disposed between the outer surface of said flexible, conformable, protective sheeting material and the inner surface of said insulating material comprises lath.

### Claim 12 (depends on 11)

The combination according to claim 11, wherein said lath comprises a plastic material.

### Claim 13 (depends on 11)

The combination according to claim 11, wherein said lath comprises a metal material.

### Claim 14 (depends on 1)

The combination according to claim 1, wherein said layer of mortar comprises an acrylic based material containing Portland cement.