Tall Wall Insulatable Building Block

Abstract

The insulatable cementitious building block is a concrete block formed with first, second, third, and fourth spaced parallel rectangular walls, where the parallel walls are connected by offset and constricted cross-webs in parallel planes to each other and perpendicular to each of the walls. All the cross webs are from the bottom of their corresponding walls to the height of the second and third wall. The walls together with their cross webs form openings that allow for filling with insulating inserts dimensioned to fill the spaces between. Alternatively, the spaces between all walls plus the spaces above the second and third walls and above all cross-webs may be filled with liquid expandable foam.

What is claimed is: 
     
         1 . A preformed substantially rectangular building block for constructing tall walls that may be insulated with the use of either preformed inserts that are placed within the cores of the block during construction or may be filled with liquid expandable foam insulation after construction. 
     
     
         2 . The building block of  claim 1  with larger openings to allow for more insulation. 
     
     
         3 . The building block of  claim 1  that weigh less and make it easier for construction. 
     
     
         4 . The building block of  claim 1  that allows for the acceptance of greater size and amounts of horizontal reinforcement bars (rebar). 
     
     
         5 . The building block of  claim 1  that allows for easier routing of electrical conduit and plumbing pipes without cutting block.