Abstract: A method for erecting a shelter structure including providing a substantially rigid member, providing a panel of mesh material proximate to but spaced from the rigid member, projecting a cementitious material at the rigid member so as to embed the mesh material in a transverse wall so formed, after hardening of the cementitious material removing the rigid member, providing a substantially rigid shell structure about the transverse wall, providing a second mesh structure proximate but spaced from the outer surface of the shell structure, projecting a cementitious substance at the outer surface of the shell structure to form a peripheral wall with the mesh structure embedded therein, and after hardening of the cementitious substance removing the shell structure, whereby to leave standing the peripheral walls of cementitious substance with the transverse wall therein, providing a substantially rigid roof shell structure, providing a third mesh structure proximate but spaced from the outer surface of the roof she

Abstract: Alignment apparatus for use in erecting shelter structures, the apparatus comprising an eccentrically-shaped cam portion having an endless cam surface extending between first and second faces, a recess disposed in the first face, and a shaft extending from the second face in alignment with the recess, the shaft being adapted to be received in a bore in a vertical wall, the cam surface being adapted to receive and support a portion of a horizontal wall member.

Abstract: A spacer member for use in erecting shelter structures, the member comprising a base portion, an extension upstanding from the base portion, attachment structure disposed on the extension and adapted to receive and retain a portion of a mesh panel, and an enlarged head portion fixed to an end of the extension removed from the base portion.