Abstract: A heat-insulating, antisweat structural component for prefabricated residential houses, etc. comprises a set of H-shaped steel sheet piles each having opposed side plates coupled by a coupling plate and fittingly coupled to the other in a side-by-side relationship. In each H-shaped steel sheet pile, an engaging piece is formed at one edge and a fitting piece adapted to snugly fit the engaging piece is formed at the other edge of each of the side plates in such a manner that they are continuous along the respective edges, and fitting grooves are formed centrally on the opposed surfaces of the coupling plate to extend in an opposed relationship to each other and in parallel with the side plates.

Abstract: In an H-shaped steel sheet pile wherein central parts of both side plates are coupled by a coupling plate, an engaging piece is formed at one edge of the side plate and a fitting piece adapted to snugly fit the engaging piece is formed at the other edge in such a manner that they are continuous along the respective edges, and fitting grooves are formed on both surfaces of the coupling plate in a manner to extend in opposition to each other in the lengthwise direction of the coupling plate, to form an H-shaped steel sheet pile (hereinbelow, termed an "AH-shaped steel sheet pile"). Apertures are opposingly provided at required positions of both the side plates of the AH-shaped steel sheet pile, to form an H-shaped steel sheet pile (hereinafter, called a "BH-shaped steel sheet pile").