Insulated board having an integral drain

Abstract

A foundation protective layer for installation adjacent a foundation wall of a building includes a thermally insulative layer comprising a layer of foam and an upwardly extending drain passage thereon to facilitate drainage of groundwater, typically into a french drain. The drain passage may be formed within a conduit or a strip of porous material mounted on the insulative layer. A channel may be formed in the insulative layer in which the conduit or strip of porous material is disposed. The conduit may have a corrugated sidewall which may be perforated or split along its length. The strip of porous material may be formed of a web of non-woven fibers. An attachment mechanism may be used for attaching the insulative layer to the foundation wall.

1 . A foundation protective layer comprising:
 a thermally insulative layer comprising a layer of foam and adapted to be positioned adjacent a foundation wall;   a first upwardly extending channel formed in the insulative layer;   a first structure disposed in the channel; and   a first upwardly extending drain passage formed in the first structure.   
   
   
       2 . The protective layer of  claim 1  wherein the foam is substantially rigid. 
   
   
       3 . The protective layer of  claim 2  wherein the foam is a closed-cell foam. 
   
   
       4 . The protective layer of  claim 1  wherein the insulative layer has first and second sides defining therebetween a thickness of the insulative layer; and wherein the channel extends inwardly from the first side. 
   
   
       5 . The protective layer of  claim 4  further comprising a second upwardly extending channel which is formed in the insulative layer and extends inwardly from the second side; a second structure disposed in the channel; and a second upwardly extending drain passage formed in the second structure. 
   
   
       6 . The protective layer of  claim 1  wherein the first structure is connected to the insulative layer without the use of a fastener extending between the first structure and the insulative layer. 
   
   
       7 . The protective layer of  claim 1  wherein the insulative layer has a top and a bottom; and the first drain passage extends from the top to the bottom. 
   
   
       8 . The protective layer of  claim 1  wherein the first structure comprises a conduit disposed in the first channel and defining the first drain passage. 
   
   
       9 . The protective layer of  claim 8  wherein the conduit comprises a corrugated sidewall. 
   
   
       10 . The protective layer of  claim 8  further comprising a plurality of perforations formed in the sidewall in communication with the first drain passage. 
   
   
       11 . The protective layer of  claim 8  wherein the conduit is press fit into the first channel. 
   
   
       12 . The protective layer of  claim 1  wherein the first structure is press fit into the first channel. 
   
   
       13 . The protective layer of  claim 1  wherein the first structure comprises a strip of porous material disposed in the channel and defining the first drain passage. 
   
   
       14 . The protective layer of  claim 13  wherein the strip of porous material comprises a fibrous material. 
   
   
       15 . The protective layer of  claim 14  wherein the fibrous material comprises a web of non-woven fibers. 
   
   
       16 . The protective layer of  claim 13  wherein the strip of porous material is press fit into the first channel. 
   
   
       17 . The protective layer of  claim 1  further comprising an attachment mechanism on the insulative layer whereby the insulative layer is adapted to attach to the foundation wall. 
   
   
       18 . The protective layer of  claim 16  wherein the attachment mechanism comprises an adhesive. 
   
   
       19 . The protective layer of  claim 1  further comprising a foundation wall; and wherein the insulative layer abuts the foundation wall. 
   
   
       20 . The protective layer of  claim 19  further comprising a french drain adjacent the foundation wall; and wherein the first drain passage is in fluid communication with the french drain.