Base for a building structure

Abstract

A base for a building structure to be erected abutting an existing building comprises a plastics shutter having a base and sides to be filled with concrete.

1 . A base for a building structure comprising a plastics shutter having a base and sides to be filled with concrete or the like.  
   
   
       2 . A base as claimed in  claim 1  that is rectangular.  
   
   
       3 . A base as claimed in  claim 1 , wherein the base of the shutter has at least one raised portion to reduce the amount of concrete required to fill the shutter.  
   
   
       4 . A base as claimed in  claim 1 , wherein the shutter has an outward lip.  
   
   
       5 . A base as claimed in  claim 4 , wherein on one side the lip is deeper than on the other sides of the shutter to provide a damp proof course.  
   
   
       6 . A base as claimed in  claim 1  having insulating material internally thereof.  
   
   
       7 . A base as claimed in  claim 1  having insulating material externally thereof.  
   
   
       8 . A base as claimed in  claim 6 , wherein the insulating material is bonded to the surface of the shutter.  
   
   
       9 . A base as claimed in  claim 6 , wherein the insulating material is of foamed plastics material.  
   
   
       10 . A base as claimed in  claim 9 , wherein the insulating material is of polystyrene.  
   
   
       11 . A base as claimed in  claim 1  having means for locating and/or attaching side frames of a building structure.  
   
   
       12 . A base as claimed in  claim 11 , wherein said means is in the form of clips that connect with the side frames.  
   
   
       13 . A method of providing a base for a building structure comprising a plastics shutter having a base and sides and filling the shutter with concrete or the like.  
   
   
       14 . A method as claimed in  claim 13 , wherein the base is rectangular.  
   
   
       15 . A method as claimed in  claim 13 , wherein the base of the shutter has at least one raised portion to reduce the amount of concrete required to fill the shutter.  
   
   
       16 . A method as claimed in  claim 13 , wherein the shutter has an outward lip.  
   
   
       17 . A method as claimed in  claim 16 , wherein on one side the lip of the shutter is deeper than on the other sides of the shutter to provide a damp proof course.  
   
   
       18 . A method as claimed in  claim 13 , wherein the shutter has insulating material internally thereof.  
   
   
       19 . A method as claimed in  claim 13 , wherein the shutter has insulating material externally thereof.  
   
   
       20 . A method as claimed in  claim 18 , wherein the insulating material is bonded to the surface of the shutter.  
   
   
       21 . A method as claimed in  claim 18 , wherein the insulating material is of foamed plastics material.  
   
   
       22 . A method as claimed in  claim 21 , wherein the insulating material is of polystyrene.  
   
   
       23 . A method as claimed in  claim 13  wherein the shutter has means for locating and/or attaching side frames of the building structure.  
   
   
       24 . A method as claimed in  claim 23 , wherein said means is in the form of clips that connect with the side frames.  
   
   
       25 . An extension to an existing building, which extension is a glazed structure, with no closure between the extension and the existing building, wherein the extension is erected on a base as claimed in any one of  claims 1  to  12 .  
   
   
       26 . (canceled)  
   
   
       27 . (canceled)  
   
   
       28 . (canceled)