Building board

Abstract

A board suitable for installation on the side of a building has a front surface suitable for exposure to the weather, a rear surface, an upper end and a lower end, wherein the board has a stacking foot at either the upper end or lower end of the board, and has a stacking notch at the other of the upper end or lower end, with the stacking notch and the stacking foot enabling two of the boards to be stacked together with the stacking foot of each of the boards nested in the stacking notch of the other board, thereby providing stability for the stacked boards.

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       26 . A method of making a board suitable for installation on the wall of a building, the method comprising extruding a board from a polymeric or cementitious material, the board having a front surface suitable for exposure to the weather and a rear surface, the board having a cross-sectional profile that includes a stacking foot at one end of the cross-sectional profile and a stacking notch at the other end of the cross-sectional profile, with the stacking notch and the stacking foot enabling two of the boards to be stacked together with the stacking foot of each of the boards nested in the stacking notch of the other board, thereby providing stability for the stacked boards.  
   
   
       27 . The method of  claim 26  in which the ends of the cross-sectional profile are configured so that when a plurality of the boards is installed on the wall of a building, the lower end of a board being installed will form an interlock fit with the upper end of the immediately previously installed board, thereby holding the lower end of the board against the upper end of the immediately previously installed board.  
   
   
       28 . The method of  claim 27  wherein the cross-sectional profile includes an interlock leg at one end and a top edge at the other end, the interlock leg of the board being shaped to form the interlock fit with the top edge of the immediately previously installed board when a plurality of the boards is installed on the wall of a building.  
   
   
       29 . The method of  claim 26  in which the cross-sectional profile has a nailing area with a horizontal groove, and the stacking notch is positioned on the rear surface of the board, within the nailing area.  
   
   
       30 . The method of  claim 29  in which the cross-sectional profile includes a foot structured to maintain a lower end of the board spaced apart from the front surface of the immediately previously installed board when a plurality of the boards is installed on the wall of a building.  
   
   
       31 . The method of  claim 26  in which the board comprises a core layer and a layer, the core layer and the cladding layer being coextruded.  
   
   
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