To provide a house wrap material having excellent moisture permeability and waterproofness, in particular, high watertight sealability in a tucker nail portion, and preventing construction efficiency from being deteriorated or improving it.

A house wrap material 1 includes: a first sheet layer 2 mounted on an outside surface 102a of an internal wall structure 102 of an architectural structure; a second sheet layer 4 laminated over the entire first sheet layer; and an adhesion layer 3 which bonds the first sheet layer to the second sheet layer. A non-bonded portion 5 is formed between the first sheet layer and the second sheet layer at least in the vicinity of one side edge side in the longitudinal direction of the house wrap material. The second sheet layer is bent in an opposite direction to the first sheet layer in the non-bonded portion to expose the first sheet layer, thereby enabling the exposed first sheet layer to be fixed on the outside surface of the internal wall structure of an architectural structure by tucker nails 6.